e ñÁSAMPLE_NO.CSITE_IDC INT_TOP_CMN INT_BTM_CMN LITH_DESCCÍ 93ABM02(0-10) 93ABM02 0 10light brown fine sand 93ABM02(10-11) 93ABM02 10 11gray-white ash (May,1980 Mt. St. Helens) 93ABM02(11-22) 93ABM02 11 22medium brown medium-fine sand 93ABM02(22-36) 93ABM02 22 36orange laminated silt with 3 cm dark brown fine sand at 25-28 93ABM02(36-44) 93ABM02 36 44dark brown, ripple-laminated fine sand with wavy bedding top 93ABM02(44-66) 93ABM02 44 668 couplets of dark brown, very fine sand and orange silt 93ABM02(66-85) 93ABM02 66 85orange-brown fine sand with climbing ripple laminations and 3 grass-mat parting seams 93ABM02(85-97) 93ABM02 85 97gray silty mud with irregular lens of orange cemented silty mud 93ABM02(97-110) 93ABM02 97 110massive gray silty mud 93ABM02(110-126) 93ABM02 110 126massive gray silty mud with sparse orange 0.5 cm spots 93ABM02(0-97) 93ABM02 0 97composite 0.5 liter channel sample of orange, sandy section 93ABM02(97-126) 93ABM02 97 126composite 0.5 liter sample of gray muddy section 93ABM02(0-97) 93ABM02 0 97composite 6 liter channel sample of orange, sandy section 93ABM02(97-129) 93ABM02 97 129composite 6 liter sample of gray muddy section 93CSC03(0-6) 93CSC03 0 6brown fine-very fine sand 93CSC03(6-6.5) 93CSC03 6 7gray-white ash (May,1980 Mt. St. Helens) 93CSC03(6.5-10) 93CSC03 7 10pale brown medium and fine sand 93CSC03(10-43) 93CSC03 10 43tan silt-very fine sand 93CSC03(43-46) 93CSC03 43 46red brown silt 93CSC03(46-55) 93CSC03 46 55red brown very fine sand 93CSC03(55-61) 93CSC03 55 61red-brown fine and medium sand 93CSC03(61-66) 93CSC03 61 66tan very fine sand and silt 93CSC03(66-71) 93CSC03 66 71interbedded coarse and medium sand 93CSC03(71-77) 93CSC03 71 77pale brown very fine sand and silt 93CSC03(77-95) 93CSC03 77 95pale brown silt 93CSC03(95-112) 93CSC03 95 112chocolate brown silt 93CSC03(112-121.5) 93CSC03 112 122muddy red-brown silt 93CSC03(121.5-133) 93CSC03 122 133chocolate brown fine sand 93CSC03(133-145) 93CSC03 133 145pale brown silt-very fine sand 93CSC03(145-155) 93CSC03 145 155pale brown silt-very fine sand 93CSC03(155-168) 93CSC03 155 168gray silt and fine sand 93CSC03(168-192) 93CSC03 168 192gray very fine sand 93CSC03(192-232) 93CSC03 192 232medium sand 93CSC03(232-256) 93CSC03 232 256gray silt and fine sand 93ABM04(0-12) 93ABM04 0 12tan unconsolidated fine-grained sand 93ABM04(12-13) 93ABM04 12 13gray-white ash (May,1980 Mt. St. Helens) 93ABM04(13-18) 93ABM04 13 18rusty red-brown fine sand, weakly cemented by iron hydroxide 93ABM04(22-27) 93ABM04 22 27rusty red-brown fine sand, weakly cemented by iron hydroxide 93ABM04(32-37) 93ABM04 32 37rusty red-brown fine sand, weakly cemented by iron hydroxide 93ABM04(42-48) 93ABM04 42 48rusty red-brown fine sand, weakly cemented by iron hydroxide 93ABM04(48-76) 93ABM04 48 76orange-brown laminated silt, weakly cemented by iron hydroxide 93ABM04(76-142) 93ABM04 76 142gray massive silt, obvious root bioturbation in upper 25 cm; lake level (2128') at 142 93ABM06 93ABM06 crs. grained, 2 cm thick red-brown quartz sand lens under angular 0.5 m quartzite block of RR embankment fill 93ABM06 93ABM06 gray silt 45 cm below 6A: lake level (2128') 50 cm below 93ABL08(0-5) 93ABL08 0 5red-brown silty mud 93ABL09(0-83) 93ABL09 0 83tan unconsolidated fine sand 93SBC10(0-3) 93SBC10 0 3tan unconsolidated fine-grained sand 93SBC10(3-3.5) 93SBC10 3 4gray-white ash (May,1980 Mt. St. Helens) 93SBC10(3.5-30) 93SBC10 4 30pale brown fine sand, weakly cemented 93SBC10(30-70) 93SBC10 30 70red-brown fine-medium sand, ripple-laminated with black cross-laminae, weakly cemented 93SBC10(70-90) 93SBC10 70 90brown fine sand, weakly cemented, with irregular leaf-rich seams 93SBC10(90-100) 93SBC10 90 100brown fine sand, weakly cemented, with irregular leaf-rich seams 93SBC10(100-130) 93SBC10 100 130mottled dark to light tan silty sand with 5 cm wood-rich seam at top and 1 cm charcoal seam at base 93SBC10(130-160) 93SBC10 130 160mottled dark to light tan silty sand 93SBC10(160-360) 93SBC10 160 360pebbly to cobbly gravel, clast-supported, clasts to 10 cm; river level at 360 93SBR13(0-15) 93SBR13 0 15tan unconsolidated fine-grained sand 93SBR13(15-16) 93SBR13 15 16gray-white ash (May,1980 Mt. St. Helens) 93SBR13(16-52) 93SBR13 16 52tan unconsolidated medium sand with climbing-ripple laminations 93SBR13(57-65) 93SBR13 57 65orange-brown laminated silt, weakly cemented by iron hydroxide; 2 cm very fine sand in center 93SBR13(221-237) 93SBR13 221 237dark red-brown medium-fine sand, weakly cemented by iron hydroxide 93SBR13(237-251) 93SBR13 237 251dark red-brown fine sand, weakly cemented by iron hydroxide 93SBR13(251-291) 93SBR13 251 291orange-brown laminated silt, weakly cemented by iron hydroxide 93SBR13(291-351) 93SBR13 291 351gray clayey silt with irregular orange-cemented fractures; lake level (2128') at 351 93SBM14 93SBM14 moderately cemented tan mudstone with Miocene leaf impressions 93SBC15(0-15) 93SBC15 0 15tan unconsolidated fine-grained sand 93SBC15(15-16) 93SBC15 15 16gray-white ash (May,1980 Mt. St. Helens) 93SBC15(16-35) 93SBC15 16 35tan very fine sand with 4 cm medium fine sand in center 93SBC15(35-90) 93SBC15 35 90alternating 1-3 cm thick layers of laminated orange silt and weakly cemented pale brown fine sand 93SBC15(90-165) 93SBC15 90 165orange laminated silt with several 1 cm dark fine sand layers 93SBC15(165-214) 93SBC15 165 214orange massive silt with several 0.5-1.0 cm very fine sand layers 93SBC15(214-242) 93SBC15 214 242mottled gray, black, orange and brown clayey silt 93SBC15(242-261) 93SBC15 242 261gray clayey silt with irregular orange streaks: lake level (2127.8') at 261 93SBC16(0-5) 93SBC16 0 5poorly sorted gravelly sand with considerable mud; 5 cm below lake surface (2128') on mid-river sand bar 93SBK17(0-8) 93SBK17 0 8artificially placed angular white quartzite gravel 93SBK17(8-25) 93SBK17 8 25black, magnetite-rich coarse-grained sand with pea gravel lenses 93SBK17(25-68) 93SBK17 25 68maroon and tan ripple cross-laminated medium to coarse-grained sand with lens of imbricated gravel with rounded, 1 cm disc-shaped clasts 93SBK17(68-106) 93SBK17 68 106dark red-orange clayey silt, well laminated, weathered surface partially coated with white sulfate 93SBK17(106-152) 93SBK17 106 152bioturbated tan silty sand with some clay; upper 15 cm is organic-rich clayey silt; floating 3-5 cm pebbles in lower 25 cm 93SBK17(152-230) 93SBK17 152 230unconsolidated cobble conglomerate, matrix-supported in upper 20 cm, clast-supported below; average clast size: 5 cm, max. clast size: 15 cm 93SBK17(230-300) 93SBK17 230 300similar to above conglomerate; river at 300 93SBK18(0-7) 93SBK18 0 7artificially placed wood chips 93SBK18(7-10) 93SBK18 7 10orange-brown silt, weakly cemented 93SBK18(10-11) 93SBK18 10 11gray-white ash (May,1980 Mt. St. Helens) 93SBK18(11-26) 93SBK18 11 26orange-brown silt, weakly cemented 93SBK18(26-82) 93SBK18 26 82ripple-laminated, very fine sand in 1 cm beds (weathered-orange, unweathered-tan) with numerous 0.3 cm orange silt seams; several finely ground black organic seams 93SBK18(82-92) 93SBK18 82 92gray clay with black sooty organics within and at base 93SBK18(92-109) 93SBK18 92 109gray massive clay with 5-10% floating pebbles to 3 cm in diameter 93SBK18(109-160) 93SBK18 109 160clast-supported round-cobble gravel coarsening downward from 2-3 cm clasts to greater than 10 cm clasts 93SBB20(0-5) 93SBB20 0 5red-orange silt at edge of gravelled parking lot; overlies earlier white gravel and underlies black gravel of most recent surfacing 93SBB21(0-9) 93SBB21 0 9unconsolidated fine sand, grading from red to black to tan upwards 93SBB21(9-10) 93SBB21 9 10gray-white ash (May,1980 Mt. St. Helens) 93SBB21(10-41) 93SBB21 10 41thinly bedded dark-brown fine sand with a few 1 cm white mud layers 93SBB21(41-72) 93SBB21 41 72alternated 1 cm layers of light orange silt and dark brown fine sand; 3 cm magnetite-rich ripple-laminated fine sand at base 93SBB21(72-84) 93SBB21 72 84orange silt with 3.5 cm ripple-laminated fine sand in center 93SBB21(84-99) 93SBB21 84 99light tan-orange muddy silt in lower half; alternated dark red-brown fine sand-orange silt in upper half 93SBB21(99-111) 93SBB21 99 111pale gray silt (irregularly mottled orange) with disseminated black woody fragments 93SBB21(111-120) 93SBB21 111 120gray clay with black organic flecks and rare red blotches 93SBB21(120-130) 93SBB21 120 130light brown medium sand with irregular orange streaks 93SBB21(130-148) 93SBB21 130 148dark gray-brown silty mud with rare orange spots 93SBB21(148-160) 93SBB21 148 160light brown medium sand 93SBB21(160-180) 93SBB21 160 180gray-brown thinly bedded fine sand, silt, and mud; lake level (2125.87') at 173 93SBB21(173-180) 93SBB21 173 180gray-brown mud 93SBB21(180-192) 93SBB21 180 192tan fine sand 93SBB21(192-203) 93SBB21 192 203gray silty clay 93SBB22(0-4) 93SBB22 0 4matted vegetation 93SBB22(4-4.5) 93SBB22 4 5gray-white ash (May,1980 Mt. St. Helens) 93SBB22(4.5-7.5) 93SBB22 5 8vegetation mat with minor silt component 93SBB22(7.5-12) 93SBB22 8 12orange-brown silty clay 93SBB22(12-15) 93SBB22 12 15orange-brown silty clay with abundant roots 93SBB22(15-19) 93SBB22 15 19orange-brown clay with silty seams 93SBB22(19-26) 93SBB22 19 26orange-brown silty clay, mottled gray at base 93SBB22(26-29) 93SBB22 26 29gray and orange mottled clay, gray near base 93SBB22(29-36) 93SBB22 29 36gray-black organic-rich mud 93SBB22(36-48) 93SBB22 36 48dark-gray peat 93SBB22(48-60) 93SBB22 48 60dark-gray peat with preserved vegetative mats 93SBB22(60-82) 93SBB22 60 82gray-brown weakly layered peat 93SBB23(0-5) 93SBB23 0 5tan unconsolidated fine-grained sand 93SBB23(5-6) 93SBB23 5 6gray-white ash (May,1980 Mt. St. Helens) 93SBB23(6-12) 93SBB23 6 12lower 3 cm-dark brown fine sand; upper 3 cm-light tan silt 93SBB23(12-17) 93SBB23 12 17brown silt to very fine sand; grass mat layer at base 93SBB23(17-22) 93SBB23 17 22brown silt to very fine sand; grass mat layer at base 93SBB23(22-30) 93SBB23 22 30dark brown fine sand; grass mat layer at base 93SBB23(30-46) 93SBB23 30 46dark to light brown fine sand, ripple cross-laminated, irregular channelized base 93SBB23(46-53) 93SBB23 46 53orange laminated silt, with 1 cm organic rich layer at base 93SBB23(53-86) 93SBB23 53 86tan to light tan mottled and massive silty clay, grossly layered in upper 10 cm 93SBB23(86-117) 93SBB23 86 117tan to light tan mottled and massive silty clay 93SBL26(0-6) 93SBL26 0 660% horsetail stalks, 40% gray mud; mud is brown with red tinge at top 93SBL26(6-12) 93SBL26 6 12gray brown mud with reddish tinge; 40% horsetail stalks and dark organic matter 93SBL26(12-20) 93SBL26 12 20gray brown mud with 30% horsetail stalks and dark organic matter 93SBL26(20-28) 93SBL26 20 28gray brown mud with 50% vegetative matter (including horsetail stalks) 93SBL26(28-34) 93SBL26 28 34upper 3 cm - brown-black muddy peat; lower 3 cm - vegetative matter 93SBL26(34-47) 93SBL26 34 47brown-black peat with 1.5 cm vegetative mat of horsetail stalks and grass at base 93SBL26(47-58) 93SBL26 47 58brown-black peat with 1.5 cm vegetative mat of horsetail stalks and grass at base 93SBL27(0-7) 93SBL27 0 7tan unconsolidated fine-grained sand 93SBL27(7-7.5) 93SBL27 7 8gray-white ash (May,1980 Mt. St. Helens) 93SBL27(7.5-19) 93SBL27 8 19medium-grained sand with black-streaked ripple-laminations 93SBL27(19-23) 93SBL27 19 23orange laminated silt 93SBL27(23-39) 93SBL27 23 39dark brown fine-grained sand with two 1 cm orange silt layers 93SBL27(39-46) 93SBL27 39 46alternating dark brown fine-grained sand and orange silt 93SBL27(46-50) 93SBL27 46 501 cm orange silt beds with fine sand partings 93SBL27(50-60) 93SBL27 50 60alternating dark brown fine-grained sand and orange silt 93SBL27(60-76) 93SBL27 60 76gray brown bioturbated muddy very fine sand 93SBL27(63-65) 93SBL27 63 65orange-brown silt filling burrow(?) 93SBL27(76-90) 93SBL27 76 90gray brown bioturbated muddy very fine sand 93SBL27(90-99) 93SBL27 90 99gray brown bioturbated muddy very fine sand 93SBL27B(0-4) 93SBL27B 0 4tan unconsolidated fine-grained sand 93SBL27B(4-5) 93SBL27B 4 5gray-white ash (May,1980 Mt. St. Helens) 93SBL27B(5-16) 93SBL27B 5 16dark brown fine to medium-grained sand 93SBL27B(16-23) 93SBL27B 16 23alternating cm-thick orange silt and very fine sand beds 93SBL27B(23-34) 93SBL27B 23 34dark brown-orange silty fine sand, weakly cemented by iron hydroxide 93SBL27B(34-43) 93SBL27B 34 43laminated pale tan to orange silt and very fine sand 93SBL27B(43-53) 93SBL27B 43 53laminated pale tan to orange silt and very fine sand 93SBL27B(53-69) 93SBL27B 53 69laminated pale tan to orange silt and very fine sand 93SBL27B(69-85) 93SBL27B 69 85gray bioturbated silty fine sand 93SBL28(0-11) 93SBL28 0 11gray mud with 70% horsetail stalks 93SBL28(11-16) 93SBL28 11 16gray mud with 50% organic material (decomposed horsetail stalks) 93SBL28(16-25) 93SBL28 16 25gray mud with <25% organic material 93SBL28(25-34) 93SBL28 25 34gray mud with <25% organic material 93SBL28(34-37) 93SBL28 34 37gray mud with <25% organic material (horsetail mat parting at base) 93SBL28(37-41) 93SBL28 37 41gray mud with <25% organic material (horsetail mat parting at base) 93SBL28(41-46) 93SBL28 41 46gray mud with <25% organic material 93SBL28C(0-25) 93SBL28C 0 25vegetative mat (horsetails) with minor reddish mud 93SBL28C(25-28) 93SBL28C 25 28brown mud with 75% horsetail stalks and roots 93SBL28C(28-37) 93SBL28C 28 37brownish gray mud with 30-40% wiry black organic material 93SBL28C(37-48) 93SBL28C 37 48dark gray mud with 15 % black organic material 93SBL28C(48-54) 93SBL28C 48 54dark gray clay with 30% wiry black organic material 93SBL28C(54-64) 93SBL28C 54 64dark gray muddy compost with 60% black organic material 93SBL28C(64-72) 93SBL28C 64 72brown compost (95-100% organic) with gray coating 93SBL28C(72-83) 93SBL28C 72 83brown compost with dark smooth coating 93SBL28C(83-93) 93SBL28C 83 93brown-black composted horsetail stalks/roots 93SBL28C(93-97) 93SBL28C 93 97brown-black composted horsetail stalks/roots 93SBL30(0-4) 93SBL30 0 4orange-brown clayey silt to very fine sand 93SBL30(4-4.5) 93SBL30 4 5gray-white ash (May,1980 Mt. St. Helens) 93SBL30(4.5-9) 93SBL30 5 9orange-brown clayey silt to very fine sand, grass root network 93SBL30(9-18) 93SBL30 9 18orange-brown clayey silt to very fine sand; grass mat parting at base 93SBL30(18-23) 93SBL30 18 23yellow-brown clayey silt to very fine sand; grass mat parting at base 93SBL30(23-28.5) 93SBL30 23 29yellow-orange clayey silt to very fine sand; grass mat parting at base 93SBL30(28.5-31.5) 93SBL30 29 32yellow-orange clayey silt to very fine sand; grass mat parting at base 93SBL30(31.5-37) 93SBL30 32 37bright red-orange, moderately cemented fine sand 93SBL30(37-48) 93SBL30 37 48black clayey silt with 20% irregular gray lenses 93SBL30(48-62) 93SBL30 48 62black clayey silt 93SBL30(62-77) 93SBL30 62 77gray-black clayey silt with 1% orange spots 93SBL30(77-100) 93SBL30 77 100homogenous gray clayey silt with minor orange specks 93SBL30(100-122) 93SBL30 100 122homogenous gray clayey silt 93SBL30(127-137.5) 93SBL30 127 138pale gray clayey silt with horizontal cracks every 0.5 cm 93SBL30(137.5-144.593SBL30 138 145gray-brown unlayered clayey silt 93SBL30(144.5-158.593SBL30 145 159gray-brown clayey silt with horizontal cracks every 1.5 cm 93SBL30(158.5-172) 93SBL30 159 172gray clayey silt with horizontal cracks every 2 cm 93SBL30(172-180) 93SBL30 172 180gray clayey silt with horizontal cracks every 1 cm 93SBL30(180-187) 93SBL30 180 187gray clayey silt with horizontal cracks every 1 cm 93SBL31(0-6) 93SBL31 0 6medium brown, very fine unconsolidated sand 93SBL31(6-6.5) 93SBL31 6 7gray-white ash (May,1980 Mt. St. Helens) 93SBL31(6.5-18) 93SBL31 7 18alternating cm-thick dusky brown and medium brown silt couplets; lower 3 cm-dark brown fine sand 93SBL31(18-23) 93SBL31 18 233 cm ripple-laminated salt & pepper fine sand underlain by 2 cmm pale orange silt 93SBL31(23-30) 93SBL31 23 30dark brown fine sand with ripple laminations defined by alternating black and pale orange streaks 93SBL31(30-35) 93SBL31 30 35dark brown fine sand grades up to 0.5 cm silt at top 93SBL31(35-42) 93SBL31 35 42tan very fine sand with black ripple-laminations, grades up to 1 cm silt at top 93SBL31(42-48) 93SBL31 42 48light brown very fine sand with 1 cm silt at top 93SBL31(48-61) 93SBL31 48 61orange-brown silt with fine laminae; bright orange-brown very fine sand from 53-59 93SBL31(61-67) 93SBL31 61 671 cm orange silt at base, capped by two 3 cm sands with orange silt parting 93SBL31(67-73) 93SBL31 67 73orange silt with black spots; black organic parting at base 93SBL31(73-87) 93SBL31 73 87dark orange, tan and black fine- to medium-grained sand with ripple laminations; orange silt parting at base 93SBL31(87-108) 93SBL31 87 108coarsely banded orange and tan fine sand with ripple-laminations decreasing in height from 2 cm at bottom to 0.5 cm at top; gradational with underlying layer 93SBL31(108-130) 93SBL31 108 130homogenous tan fine sand with irregular black and orange streaks 93SBL31(130-137) 93SBL31 130 137pale yellow brown very fine sand with orange laminae 93SBL31(137-146) 93SBL31 137 146alternating dark gray muddy silt and very fine sand in 0.5 cm thick layers 93SBL31(146-160) 93SBL31 146 160medium gray to light olive gray silty very fine sand 93SBL31(185-200) 93SBL31 185 200alternating gray silt and tan very fine sand in 0.5 cm layers 93SBL31(200-211) 93SBL31 200 211three 3 cm tan fine sand layers separated by 1 cm dark gray silt layers 93SBL32(0-3) 93SBL32 0 3medium brown very fine sand with roots 93SBL32(3-3.5) 93SBL32 3 4gray-white ash (May,1980 Mt. St. Helens) 93SBL32(3.5-10.5) 93SBL32 4 11light red-orange brown very fine sand 93SBL32(10.5-16) 93SBL32 11 16dusky brown silt 93SBL32(16-24) 93SBL32 16 24irregular lens of dark red-brown silt in homogenous moderate brown silt 93SBL32(24-31) 93SBL32 24 31dusky brown silt with mottles of light brown 93SBL32(31-48) 93SBL32 31 48moderate brown silty mud with no mottling 93SBL34a 93SBL34 gray black mud with 10% red spots at water's edge at 2121.4' above sea level 93SBL34b 93SBL34 red very fine sand and silt with gray streaks vertical meter above 93SBL34a and 10 cm below 93SBL34c 93SBL34c 93SBL34 gray black mud 10 cm above 93SBL34b and adjacent to 93SBL34d 93SBL34d 93SBL34 irregular blob of red-orange, moderately cemented mud penetrating downward into layer of 93SBL34c 93SBL34e 93SBL34 gray black mud with minor red streaks 2m east of 93SBL34d and about 1.5 m below ground surface 93SBL34f 93SBL34 red cemented silty mud along vertical fracture (3 cm wide) cutting gray-black mud layer of 93SBL34e 93SBL34g 93SBL34 25 cm thick red-orange layered silt 50 cm above 93SBL34e 93SBL34h 93SBL34 2 cm gray lens in red-orange layered silt between layers of 93SBL34g and 93SBL34i 93SBL34i 93SBL34 25 cm red-orange layered silt-very fine sand above 93SBL34h with layer top 65 cm below ground surface 93SBC35A(0-5) 93SBC35A 0 5gravelly coarse unconsolidated sand from dredge pile west of Cataldo boat landing 93SBC35B(0-5) 93SBC35B 0 5gravelly coarse unconsolidated sand from dredge pile west of Cataldo boat landing 93SBC36(0-5) 93SBC36 0 5coarse to fine sand from modern sandbar 93SBC37(0-30) 93SBC37 0 30tan medium-coarse unconsolidated sand with scattered 1-2 cm clasts in upper 5 cm 93SBK38(0-2) 93SBK38 0 2tan unconsolidated fine sand in small patches on modern gravel point bar 93SBK38(0-11) 93SBK38 0 11brown muddy fine sand (no Mt. St. Helens ash) 93SBK38(11-20) 93SBK38 11 20red-brown medium sand 93SBK38(20-55) 93SBK38 20 55gravelly coarse sand with 25% 2-cm rounded quartzite clasts 93SBK38(55-100) 93SBK38 55 100red-brown sandy gravel (70% 2-5 cm clasts; 30% coarse sand) 93SBC39(0-2) 93SBC39 0 2medium-fine sand from eddy bar in modern channel 93SBC39(0-5) 93SBC39 0 5light tan fine unconsolidated sand 93SBC39(5-5.5) 93SBC39 5 6gray-white ash (May,1980 Mt. St. Helens) 93SBC39(5.5-10) 93SBC39 6 10orange-brown fine sand 93SBC39(10-20) 93SBC39 10 20marble-cake (brown, orange, black) fine sand 93SBC39(20-27) 93SBC39 20 27dark brown and black fine sand 93SBC39(27-32) 93SBC39 27 32red-brown fine sand 93SBC39(32-40) 93SBC39 32 40dark brown clayey very fine sand 93SBC39(40-58) 93SBC39 40 58light brown clayey very fine sand 93SBC39(58-72) 93SBC39 58 72dark brown clayey fine sand 93SBC39(72-225) 93SBC39 72 225unconsolidated round cobble conglomerate; river at 225 94SB40(0-2) 94SB40 0 2unconsolidated medium sand from modern point bar deposit 94SB40(0-15) 94SB40 0 15grassroot-filled fine sand with visible mica flakes 94SB40(15-16) 94SB40 15 16gray-white ash (May,1980 Mt. St. Helens) 94SB40(16-50) 94SB40 16 50brown silt to very fine sand, unlayered, with visible mica flakes 94SB40(50-75) 94SB40 50 75mottled gray-orange-brown fine sand with clayey matrix; no layering 94SB40(75-100) 94SB40 75 100mottled gray-orange-brown fine sand with clayey matrix with two distinct 2-cm dark brown silts with dark organics 94SB40(100-125) 94SB40 100 125mottled gray-orange-brown fine sand with clayey matrix with 1 cm dark brown silt layer with dark organics; base is 2 m above lake surface (2121.37') 94Gid2(0-3) 94Gid2 0 3grassy duff with disseminated fine sand 94Gid2(3-4) 94Gid2 3 4fine sand 94Gid2(4-9) 94Gid2 4 9mottled red-brown to gray very fine sand and silt layers, 1-2 cm thick 94Gid2(9-10) 94Gid2 9 10fine sand 94Gid2(10-27) 94Gid2 10 27mottled red-brown to gray very fine sand and silt layers, 1-2 cm thick 94Gid2(27-29) 94Gid2 27 29red-brown fine sand with organics 94Gid2(29-52) 94Gid2 29 52mottled gray silt with organics 94Gid2(52-56) 94Gid2 52 56fine sand 94Gid2(56-86) 94Gid2 56 86dark gray silt with two 0.5 cm very fine sand layers 94Gid2(86-90) 94Gid2 86 90fine-very fine sand and silt layers (0.5 cm each) 94Gid2(90-142) 94Gid2 90 142homogenous gray fine sand 94Gid2(142-181) 94Gid2 142 181cm-thick layered gray muddy silt with rootlets 94Gid2(181-203) 94Gid2 181 203gray very fine sand 94Gid2(203-215) 94Gid2 203 215gray fine sand 94Gid2(215-245) 94Gid2 215 245gray very fine sand 94Gid2(245-250) 94Gid2 245 250gray silt 94Gid2(250-280) 94Gid2 250 280gray silt and muddy silt with rootlets; layered in 0.2-1.0 cm layers of gray shades 94Gid3(0-3) 94Gid3 0 3tan very fine sand 94Gid3(3-3.5) 94Gid3 3 4gray white ash, 1980 Mt. St. Helens 94Gid3(3.5-12) 94Gid3 4 12dark gray fine sand 94Gid3(12-67.5) 94Gid3 12 68laminated dark brown and yellow-orange very fine sand and silt layers, 0.1-1.0 cm thick 94Gid3(122-130) 94Gid3 122 130laminated dark brown and yellow-orange very fine sand and silt layers, 0.1-1.0 cm thick 94Gid3(130-136) 94Gid3 130 136fine salt & pepper dark gray sand 94Gid3(136-151) 94Gid3 136 151orange laminated silt with 5% irregular gray splotches 94Gid3(151-190) 94Gid3 151 190dark gray muddy silt with fine sand 155-157; plant debris rich layers at 153, 163 cm 94Gid3(190-223) 94Gid3 190 223tan-gray muddy silt with indistinct layers 94Gid3(244-252) 94Gid3 244 252tan gray muddy silt & very fine sand 94Gid3(252-284) 94Gid3 252 284tan, massive medium-fine sand 94Gid3(284-297) 94Gid3 284 297tan muddy silt; black plant debris rich seam at 286 cm 94Gid3(297-300) 94Gid3 297 300tan fine sand 94Gid3(300-321) 94Gid3 300 321tan muddy silt 94Gid3(321-326) 94Gid3 321 326tan fine sand 94Gid3(326-337) 94Gid3 326 337tan muddy silt 94Gid4(0-2) 94Gid4 0 2grassy duff layer 94Gid4(2-10) 94Gid4 2 10tan medium-fine sand with grass rootlets 94Gid4(10-16) 94Gid4 10 16very fine sand and silt layers, dark brown 94Gid4(16-40) 94Gid4 16 40orange brown laminated silt 94Gid4(40-46) 94Gid4 40 46dark brown-black fine sand 94Gid4(46-52) 94Gid4 46 52orange-brown silt 94Gid4(52-57) 94Gid4 52 57brown fine sand 94Gid4(57-63.5) 94Gid4 57 64laminated orange silt, gray on bottom 94Gid4(63.5-122) 94Gid4 64 122No recovery 94Gid4(122-128) 94Gid4 122 128black-brown silty clay, blotchy layers with red, eye-shaped lenses in upper cm 94Gid4(128-132) 94Gid4 128 132medium-fine brown sand 94Gid4(132-194) 94Gid4 132 194tan silty clay with dark gray laminae visible below 160 94Gid4(194-198) 94Gid4 194 198tan silty medium-fine sand 94Gid4(198-215) 94Gid4 198 215tan silty clay with irregular black laminae 94Gid4(215-244) 94Gid4 215 244No recovery 94Gid4(244-251) 94Gid4 244 251tan silty clay with thin fine sand laminae 94Gid4(251-255) 94Gid4 251 255very fine sand 94Gid4(255-256) 94Gid4 255 256tan silty clay with thin fine sand laminae 94Gid4(256-267) 94Gid4 256 267fine sand 94Gid4(267-273) 94Gid4 267 273tan silty clay with thin fine sand laminae 94Gid4(273-279) 94Gid4 273 279very fine sand 94Gid4(279-351) 94Gid4 279 351tan silty clay with irregular rusty blotches; sporadic thin fine sand layers 94Gid5(0-5) 94Gid5 0 5grassy duff layer 0-1.5 cm; tan fine sand with grass roots 1.5-5.0 cm 94Gid5(5-5.5) 94Gid5 5 6gray white ash, 1980 Mt. St. Helens 94Gid5(5.5-10) 94Gid5 6 10tan fine sand 94Gid5(10-18) 94Gid5 10 18fine sand, gradually changing from orange to dark brown downward 94Gid5(18-43) 94Gid5 18 43dark brown silty very fine sand with irregular lenses of orange silt in upper 5 cm; orange fine sand 35-36 94Gid5(43-90) 94Gid5 43 90homogenous dark brown-black silt becoming somewhat lighter in lower half; sharp basal contact 94Gid5(90-96) 94Gid5 90 960.2-0.4 cm layers of tan very fine sand and dark brown silt 94Gid5(96-122) 94Gid5 96 122No recovery 94Gid5(122-128) 94Gid5 122 128dark gray brown silt, fine light and dark layers 94Gid5(128-131) 94Gid5 128 131chocolate brown fine sand with twigs 94Gid5(131-225) 94Gid5 131 225homogenous, unlayered silty clay and very fine sand, dark at top becoming tan by 180 to bottom, irregular orange blotches throughout 94Gid6(0-3) 94Gid6 0 3grassy duff with fine sand content increasing downward 94Gid6(3-4) 94Gid6 3 4gray white ash, 1980 Mt. St. Helens 94Gid6(4-8) 94Gid6 4 8tan-orange very fine sand 94Gid6(8-11) 94Gid6 8 11orange silt 94Gid6(11-16) 94Gid6 11 16orange very fine sand 94Gid6(16-20) 94Gid6 16 20mottled orange and gray very fine sand 94Gid6(20-70) 94Gid6 20 70dark brown very fine sand-silt grading downward to light brown, very fine sand-silt, no layering 94Gid6(70-79) 94Gid6 70 79laminated gray-tan silt with pale rust splotches 94Gid6(79-122) 94Gid6 79 122No recovery 94Gid6(122-127) 94Gid6 122 127laminated gray-tan silt 94Gid6(127-130) 94Gid6 127 130red-brown fine sand with grass stalks 94Gid6(130-226) 94Gid6 130 226homogenous gray-tan silty clay and very fine sand as gradational 1-3 cm layers becoming lighter downward 94VC-1(0-91) 94VC-1 0 91light olive brown medium-grained sand 94VC-1(91-97) 94VC-1 91 97olive gray silt 94VC-1(97-110) 94VC-1 97 110olive gray muddy silt 94VC-1(110-130) 94VC-1 110 130light olive gray fine-grained sand 94VC-1(130-135) 94VC-1 130 135olive gray muddy silt 94VC-1(135-148) 94VC-1 135 148light olive gray very fine-grained sand 94VC-1(148-159) 94VC-1 148 159olive gray muddy silt 94VC-1(159-172) 94VC-1 159 172light olive gray fine-grained sand (with woody debris) 94VC-1(172-176) 94VC-1 172 176olive gray muddy silt 94VC-1(176-180) 94VC-1 176 180light olive gray fine-grained sand (with woody debris) 94VC-1(180-191) 94VC-1 180 191olive gray muddy silt 94VC-1(191-207) 94VC-1 191 207light olive gray medium-fine-grained sand 94VC-2(0-15) 94VC-2 0 15brown, medium-grained sand with black wood fragments 94VC-2(15-30) 94VC-2 15 30inclined contact between brown medium-grained sand above and olive gray silty mud below 94VC-2(30-70) 94VC-2 30 70dark olive gray silty mud 94VC-2(70-80) 94VC-2 70 80dark olive gray silty mud with 30% very fine sand 94VC-2(80-147) 94VC-2 80 147dark olive gray silty mud with 30-60% fine sand 94VC-2(147-164) 94VC-2 147 164dark olive gray medium-grained sand with black wood chips, sticks 94VC-3(0-55) 94VC-3 0 55light olive brown medium-fine-grained sand 94VC-3(55-120) 94VC-3 55 120light olive gray fine-grained sand 94VC-3(120-130) 94VC-3 120 130dark gray silt 94VC-3(130-140) 94VC-3 130 140light olive gray medium-fine-grained sand 94VC-3(140-170) 94VC-3 140 170light olive gray fine-grained sand 94VC-3(170-173) 94VC-3 170 173dark gray silt 94VC-3(173-190) 94VC-3 173 190olive gray very fine-grained sand 94VC-3(190-195) 94VC-3 190 195light olive gray fine-grained sand 94VC-3(195-209) 94VC-3 195 209olive gray very fine-grained sand 94VC-3(209-211) 94VC-3 209 211olive gray very fine-grained sand with black woody debris 94VC-3(211-214) 94VC-3 211 214olive gray very fine-grained sand 94VC-3(214-220) 94VC-3 214 220olive gray very fine-grained sand with black woody debris 94VC-3(220-230) 94VC-3 220 230olive gray fine- to very fine-grained sand 94VCD1(0-103) 94VCD1 0 103light olive gray coarse-grained sand (wood fragments in upper 10 cm) 94VCD1(103-155) 94VCD1 103 155olive gray medium-grained sand 94VCD1(155-171) 94VCD1 155 171dark gray muddy silt 94VCD1(171-229) 94VCD1 171 229olive gray medium-grained sand (abun wood chips=190-200, 210-216, 225-229 cm) 94VCD1(229-235) 94VCD1 229 235dark gray very fine-grained sand 94VCD1(235-260) 94VCD1 235 260dark olive gray silt (black leaf debris @ 257 cm) 94VCD1(260-282) 94VCD1 260 282olive gray medium-fine-grained sand 94VCD2(0-40) 94VCD2 0 40olive gray medium-fine-grained sand 94VCD2(40-100) 94VCD2 40 100light gray muddy silt 94VCD2(100-188) 94VCD2 100 188light gray medium-grained sand 94VCD2(188-192) 94VCD2 188 192light gray muddy silt 94VCD2(192-260) 94VCD2 192 260light gray medium-grained sand 94VCD2(260-295) 94VCD2 260 295light gray medium-fine-grained sand 94VCD2(295-303) 94VCD2 295 303very light gray muddy silt 94VCD2(303-325) 94VCD2 303 325olive gray fine-grained sand 94VCD3(0-24) 94VCD3 0 24olive gray fine-grained sand (black leaf layers @ 15 & 22 cm) 94VCD3(24-38) 94VCD3 24 38alternating 2 cm layers of fine-grained sand and silt 94VCD3(38-42) 94VCD3 38 42gray silt 94VCD3(42-56) 94VCD3 42 56olive gray fine-grained sand 94VCD3(56-73) 94VCD3 56 73olive gray medium-grained sand (woody layer @ 73 cm) 94VCD3(73-81) 94VCD3 73 81olive gray fine-grained sand 94VCD3(81-91) 94VCD3 81 91alternating 2 cm layers of fine-grained sand and silt 94VCD3(91-100) 94VCD3 91 100medium-fine-grained sand 94VCD3(100-125) 94VCD3 100 125alternating 2 cm layers of fine-grained sand and silt 94VCD3(125-140) 94VCD3 125 140medium-grained sand 94VCD3(140-175) 94VCD3 140 175alternating 2 cm layers of fine-grained sand and silt (black leaf horizon @ 146 cm) 94VCK1(0-133) 94VCK1 0 133light olive medium-grained sand 94VCK1(133-180) 94VCK1 133 180light olive medium-fine-grained sand 94VCK1(180-325) 94VCK1 180 325grayish-olive fine-grained sand 94VCK1(325-348) 94VCK1 325 348olive gray clayey silt 94VCK1(348-350) 94VCK1 348 350plant debris rich layer 94VCK1(350-360) 94VCK1 350 360olive gray clayey silt 94VCK1(360-367) 94VCK1 360 367grayish-olive fine-grained sand 94VCK1(367-380) 94VCK1 367 380olive gray clayey silt 94VCK2(0-90) 94VCK2 0 90light olive gray medium-grained sand 94VCK2(90-240) 94VCK2 90 240Medium olive gray medium-grained sand 94VCK2(240-267) 94VCK2 240 267medium olive gray medium-fine-grained sand 94VCK2(267-300) 94VCK2 267 300medium olive gray fine-grained sand with ~10% mud 94VCK2(300-325) 94VCK2 300 325olive gray fine- and very fine-grained sand with ~10% mud 94VCK2(325-333) 94VCK2 325 333gray silt with black wood chips 94VCK2(333-340) 94VCK2 333 340olive gray fine- and very fine-grained sand with ~10% mud 95PCK1(0-15) 95PCK1 0 15tan medium-grained sand 95PCK1(168-193) 95PCK1 168 193olive gray, fine-grained sand 95PCK1(193-204) 95PCK1 193 204dark gray, very fine-grained sand 95PCK1(204-227) 95PCK1 204 227light gray very fine-grained sand, laminated 95PCK1(227-229) 95PCK1 227 229dark gray organic silt 95PCK1(229-241) 95PCK1 229 241finely laminated, light gray very fine-grained sand 95PCK1(241-249) 95PCK1 241 249alternating fine- and very fine-grained sand 95PCK1(249-250) 95PCK1 249 250silty mud 95PCK1(250-260) 95PCK1 250 260alternating fine- and very fine-grained sand 95PCK1(260-262) 95PCK1 260 262silty mud 95PCK1(262-297) 95PCK1 262 297fine-grained sand with occasional silty mud rip-up clasts 95PCK1(297-326) 95PCK1 297 326interlayered silt/silty mud 95PCK1(326-343) 95PCK1 326 343fine-medium-grained sand with interlayered 1 cm silt beds 95PCK1(343-351) 95PCK1 343 351medium-fine-grained sand 95PCK1(351-360) 95PCK1 351 360peaty silty mud with sticks, roots; 1 cm fine-grained sand layers at 353, 358 cm 95PCK1(360-363) 95PCK1 360 363medium-grained sand 95PCK1(363-366) 95PCK1 363 366peaty silty mud 95PCK1(366-369) 95PCK1 366 369medium-grained sand 95PCK1(369-375) 95PCK1 369 375fine-grained sand 95PCK1(375-381) 95PCK1 375 381medium-grained sand 95PCK1(381-393) 95PCK1 381 393alternating organic-debris-rich muddy silt and fine-grained sand 95PCK1(393-400) 95PCK1 393 400medium-fine sand 95PCK1(400-407) 95PCK1 400 407medium sand 95PCK1(407-411) 95PCK1 407 411peaty silty mud 95PCK1(411-415) 95PCK1 411 415med sand 95PCK1(415-418) 95PCK1 415 418peaty silty mud 95PCUD2(0-25) 95PCUD2 0 25muddy silt 95PCUD2(25-50) 95PCUD2 25 50muddy silt 95PCUD2(50-75) 95PCUD2 50 75muddy silt 95PCUD2(75-100) 95PCUD2 75 100muddy silt 95PCUD2(100-125) 95PCUD2 100 125muddy silt 95PCUD2(125-150) 95PCUD2 125 150muddy silt 95PCUD2(150-165) 95PCUD2 150 165sandy silt 95VCD3(0-28) 95VCD3 0 28fine-grained sand 95VCD3(28-56) 95VCD3 28 56olive gray medium-grained sand 95VCD3(56-84) 95VCD3 56 84olive gray medium-grained sand 95VCD3(84-177) 95VCD3 84 177olive fine-grained sand 95VCD3(177-195.5) 95VCD3 177 196olive gray silt 95VCD3(195.5-214) 95VCD3 196 214olive gray fine-grained sand 95VCD3(214-230) 95VCD3 214 230olive black fine-grained sand 95VCD3(230-262) 95VCD3 230 262olive black medium-grained sand 95VCD3(262-277) 95VCD3 262 277olive gray medium-coarse-grained sand 95VCD3(277-298) 95VCD3 277 298olive black fine-grained sand 95VCD3(298-340) 95VCD3 298 340olive gray very fine-grained sand 95VCD3(340-402) 95VCD3 340 402olive black very fine-grained sand 95VCD3(402-423) 95VCD3 402 423olive-brown silt 95VCD3(423-547) 95VCD3 423 547olive gray muddy silt with fibrous wood fragments 95VCD3(547-572) 95VCD3 547 572olive gray silt 95VCUD1(0-25) 95VCUD1 0 25coarse-grained sand 95VCUD1(25-50) 95VCUD1 25 50coarse-grained sand with wood fragments 95VCUD1(50-75) 95VCUD1 50 75coarse-grained sand with wood fragments 95VCUD1(75-100) 95VCUD1 75 100medium-coarse-grained sand grading down to fine-grained sand 95VCUD1(100-125) 95VCUD1 100 125[Data missing] 95VCUD1(125-150) 95VCUD1 125 150[Data missing] 95VCUD1(150-175) 95VCUD1 150 175[Data missing] 95VCUD1(175-200) 95VCUD1 175 200[Data missing] 95VCUD1(200-224) 95VCUD1 200 224[Data missing] 95VCUD1(224-245) 95VCUD1 224 245[Data missing] 95VCUD1(245-266) 95VCUD1 245 266[Data missing] 95VCUD1(266-286) 95VCUD1 266 286[Data missing] 95VCUD1(286-306) 95VCUD1 286 306[Data missing] 95VCUD1(311-328) 95VCUD1 311 328[Data missing] 95VCUD1(328-344) 95VCUD1 328 344[Data missing] 95VCUD1(344-360) 95VCUD1 344 360[Data missing] 95VCUD1(360-377) 95VCUD1 360 377[Data missing] 95VCUD1(377-393) 95VCUD1 377 393[Data missing] 95VCUD1(393-409) 95VCUD1 393 409[Data missing] 95VCUD1(409-435) 95VCUD1 409 435fine sand and silt 95VCUD1(435-461) 95VCUD1 435 461fine sand and silt 95VCUD1(461-486) 95VCUD1 461 486fine sand and silt 95VCUD1(486-512) 95VCUD1 486 512[Data missing] 95VCUD1(512-538) 95VCUD1 512 538[Data missing] 95VCUD1(538-564) 95VCUD1 538 564[Data missing] 95VCUD1(564-589) 95VCUD1 564 589medium-fine sand 96K-75E(0-10) 96K-75E 0 10gray clayey silt 96K-89E(0-23) 96K-89E 0 23tan medium-fine grained sand, 4 layers, oranger colored near base; 1 cm MSH ash at base 96K-89E(23-49) 96K-89E 23 49alternating 2-4 cm layers of very fine sand, fine sand, and red-brown silt (duff layer @ 42 cm) 96K-89E(49-85) 96K-89E 49 85mostly red-brown silt to very fine sand with (3) 3 cm fine-grained, rippled sand beds (duff @ 52 cm); irregular gray lenses in middle part 96K-89E(85-93) 96K-89E 85 93medium-grained sand with ripple laminations 96K-89E(93-110) 96K-89E 93 110alternating layers of red-brown silt and very fine sand, heavily cemented by iron oxide 96K-89E(110-132) 96K-89E 110 132dark gray muddy silt with (2) 1 cm red-brown horizons @ 116 and 124 cm 96K-89E(132-162) 96K-89E 132 162light gray muddy silt with disseminated cm-sized orange spots 96K-114E(0-15) 96K-114E 0 15tan medium-fine grained sand 96K-114E(15-33) 96K-114E 15 33medium brown fine sand (1 cm MSH ash @ 33 cm) 96K-114E(33-43) 96K-114E 33 43dark brown-black medium fine sand 96K-114E(43-61) 96K-114E 43 61interlayered brown fine sand and orange silt layers 96K-114E(61-80) 96K-114E 61 80mostly silt with thin fine sand layers 96K-114E(80-104) 96K-114E 80 104dark brown-black medium fine sand with black streaks 96K-114E(104-130) 96K-114E 104 130medium brown fine sand 96K-114E(130-162) 96K-114E 130 162light gray fine sand 96K-114E(162-175) 96K-114E 162 175dark gray muddy silt 96K-178E(0-9) 96K-178E 0 9tan fine sand with minimal roots 96K-178E(9-13) 96K-178E 9 13tan fine sand with abundant roots and black plant matter seam on top 96K-178E(13-18) 96K-178E 13 18orange-brown very fine sand, laminated 96K-178E(18-19) 96K-178E 18 19gray-white ash, 1980 Mt St. Helens 96K-178E(19-35) 96K-178E 19 35orange-brown mottled silt & very fine sand, laminated 96K-178E(35-70) 96K-178E 35 70orange-brown silt and very fine sand, bioturbated 96K-178E(70-84) 96K-178E 70 84orange-brown silt and very fine sand, finely layered 96K-178E(84-102) 96K-178E 84 102dark gray very fine sand with rare red streaks 96K-178E(102-140) 96K-178E 102 140dark gray silt to very fine sand, layered 96LD-1S(0-16) 96LD-1S 0 168 medium sand-silt couplets, light brown above 10 cm, medium brown below 96LD-1S(16-43) 96LD-1S 16 43alternating silt and very-fine sand, with several thin medium sand layers 96LD-1S(43-70) 96LD-1S 43 70orange-brown fine and very fine sand layers, with moderate iron-oxide cementation 96LD-1S(70-93) 96LD-1S 70 93Orange brown silt with occasional very fine sand layers, stronger iron-oxide cementation than above 96LD-1S(105-120) 96LD-1S 105 120very fine sand, silt, clay and woody debris; med gray with 25% orange-brown spots 96LD-105S(0-5) 96LD-105S 0 53 cm forest duff overlain by 2 cm of tan, medium-grained sand 96LD-105S(5-18) 96LD-105S 5 18red-brown medium-fine grained sand capped by 0.5 cm Mt St Helens ash layer 96LD-105S(18-34) 96LD-105S 18 34dark red-brown-black medium-fine sand with 1 cm orange silt at base 96LD-105S(34-49) 96LD-105S 34 49gray homogenous fine sand with 5 cm charcoal layer at top, scattered charcoal fragments below T98C-1(0-3) T98C-1 0 3silt, dark brown, with organic debris T98C-1(3-4) T98C-1 3 41980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-1(4-15) T98C-1 4 15silt, dark brown, with sparse fragments of gray clay (plowed?) T98C-1(15-30) T98C-1 15 30silt, rusty colored, with abundant fragments of gray clay (plowed?) T98C-1(30-50) T98C-1 30 50silt, rusty colored T98C-1(50-65) T98C-1 50 65clay, gray T98C-5(0-5) T98C-5 0 5soil, blackish brown, with organic debris T98C-5(5-20) T98C-5 5 20silt, red-brown (hematitic, goethitic) T98C-5(20-24) T98C-5 20 24sand, coarse-grained, red-brown T98C-5(24-34) T98C-5 24 34clay, red-brown T98C-5(34-36) T98C-5 34 36sand, coarse-grained, red-brown T98C-5(36-44) T98C-5 36 44clay, gray T98C-5(44-60) T98C-5 44 60clay, gray, with fragments of red-brown clay (plowed?) T98C-5(60-110) T98C-5 60 110clay, gray (water saturated), with fragments of red-brown clay T98C-5(110-200) T98C-5 110 200clay, dark gray to black, organic-rich, water saturated T98C-6(0-3) T98C-6 0 3soil, black-brown T98C-6(3-3.2) T98C-6 3 31980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-6(3.2-11) T98C-6 3 11sand and silt, very fine-grained, red-brown T98C-6(11-25) T98C-6 11 25sandy silt, red-brown T98C-6(25-80) T98C-6 25 80silt, red-brown T98C-6(80-120) T98C-6 80 120sand and silt, very fine-grained, red-brown T98C-6(120-200) T98C-6 120 200sand, very fine-grained, red-brown T98C-7(0-5) T98C-7 0 5silt, dark brown, organic-bearing T98C-7(5-5.2) T98C-7 5 51980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-7(5.2-25) T98C-7 5 25silt, orange-brown T98C-7(25-35) T98C-7 25 35sand, brown-gray T98C-8(0-3) T98C-8 0 3silt, dark brown, organic-bearing T98C-8(3-3.2) T98C-8 3 31980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-8(3.2-23) T98C-8 3 23silt, red brown T98C-8(23-38) T98C-8 23 38sand, medium-grained, gray T98C-10(0-23) T98C-10 0 23silt, dark brown (at edge of river bed) T98C-10(23-23.6) T98C-10 23 241980 Mt. St. Helens ash, very fine-grained, very pale gray; thick, inclined layer T98C-10(23.6-40) T98C-10 24 40silt, very fine-grained, red-brown, grading downward to clay T98C-10(40-45) T98C-10 40 45gravel T98C-11B(0-25) T98C-11B 0 25silt, gray, with fragments of black peat T98C-11B(25-68) T98C-11B 25 68silt, gray, with fragments of black peat T98C-11B(68-111) T98C-11B 68 111sand, very fine-grained, dark gray T98C-12(0-5) T98C-12 0 5soil, light brown to gray, organic-bearing T98C-12(5-5.2) T98C-12 5 51980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-12(5.2-30) T98C-12 5 30silt, red-brown T98C-12(30-79) T98C-12 30 79silt, red-brown T98R-13(0-4) T98R-13 0 4soil, dark gray to black, organic-rich T98R-13(4-8) T98R-13 4 8soil containing dispersed 1980 volcanic ash T98R-13(8-35) T98R-13 8 35silt, red-brown (hematitic), with thin clay interbeds T98R-13(35-60) T98R-13 35 60clay, gray, with sandy to silty interbeds throughout T98R-14(0-3) T98R-14 0 3silt, dark brown, organic-bearing T98R-14(3-3.5) T98R-14 3 41980 Mt. St. Helens ash, very fine-grained, very pale gray T98R-14(3.5-35) T98R-14 4 35silt, red-brown, rusty, with fragments of gray silt T98R-14(35-50) T98R-14 35 50sand, yellowish brown T98R-14(50-60) T98R-14 50 60sand, gray T98R-14(60-90) T98R-14 60 90sand, gray T98R-14(90-120) T98R-14 90 120sand, gray, water saturated T98C-15(0-3) T98C-15 0 3silt, dark brown, organic-bearing T98C-15(3-3.2) T98C-15 3 31980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-15(3.2-30) T98C-15 3 30silt, dark brown and black, grading down to red-brown T98C-15(30-46) T98C-15 30 46silt, layers of red, brown, gray, and red-brown T98C-15(46-80) T98C-15 46 80clay, gray, with red-brown fragments (plowed?) T98C-15(80-120) T98C-15 80 120clay, gray T98C-16(0-9.9) T98C-16 0 10silty mud, dark brown, organic-rich T98C-16(9.9-10.1) T98C-16 10 101980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-16(10.1-34) T98C-16 10 34silt, fine-grained, red-brown with gray interbeds T98C-16(34-50) T98C-16 34 50silt, fine-grained, dark red-brown, with interbeds of coarse, black silt T98C-16(50-62) T98C-16 50 62sand, fine-grained, red-brown, with black interbeds T98C-16(62-133) T98C-16 62 133silt, light brown and red-brown T98C-16(133-160) T98C-16 133 160sand, very fine grained, dark gray T98C-16(160-182) T98C-16 160 182sand, fine-grained, brownish gray T98C-16(182-210) T98C-16 182 210sand, medium-grained, light brown T98C-17(0-8) T98C-17 0 8silt to clay, red-brown, with roots and black organic fragments T98C-17(8-9) T98C-17 8 91980 Mt. St. Helens ash, very fine-grained, very pale gray; thick layer (1 cm) T98C-17(9-20) T98C-17 9 20silt grades downward to medium-grained sand, red brown T98C-17(20-92) T98C-17 20 92silt, red-brown T98C-17(92-155) T98C-17 92 155silt, brown-red, grading downward to T98C-17(155-173) T98C-17 155 173silt, red-brown T98C-17(173-194) T98C-17 173 194silt, grading downward to clay, reddish gray T98C-17(194-202) T98C-17 194 202clay, light brownish gray T98C-18(0-3) T98C-18 0 3soil, brown, with mossy organic material T98C-18(3-3.5) T98C-18 3 41980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-18(3.5-8) T98C-18 4 8silt, light brown T98C-18(8-10) T98C-18 8 10silt, red brown T98C-18(10-17) T98C-18 10 17sand, fine-grained, dark brown T98C-18(17-31) T98C-18 17 31silt, red brown T98C-18(31-55) T98C-18 31 55silt, gray, with fragments of red-brown silt (plowed?) T98C-18(55-130) T98C-18 55 130silt, dark brown T98C-18(130-175) T98C-18 130 175silt, dark brown, with about 25 percent of clay T98C-18(175-192) T98C-18 175 192silt and clay, red-brown T98C-18(192-200) T98C-18 192 200clay, reddish brown T98C-20(0-2.5) T98C-20 0 3silty mud, dark brown, organic-bearing T98C-20(2.5-32) T98C-20 3 32silt, red-brown T98C-20(32-41) T98C-20 32 41silt, organic-rich, black T98C-20(41-46) T98C-20 41 46clay, gray T98C-21(0-14) T98C-21 0 14silt, light brown, organic-bearing T98C-21(14-15) T98C-21 14 151980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-21(15-30) T98C-21 15 30silt, light brown, with fragments of gray clay and plant roots (plowed?) T98C-21(30-45) T98C-21 30 45silt, red-brown, laminated T98C-21(45-60) T98C-21 45 60sand, dark gray T98C-21B(60-125) T98C-21B 60 125sand, medium-grained, gray T98C-21B(125-200) T98C-21B 125 200sand, gray T98C-22(0-30) T98C-22 0 30clay, dark brown, organic-rich, with fragments of red-brown clay (plowed?) T98C-22(30-47) T98C-22 30 47clay, dark brown, with fragments of red-brown clay (plowed?) T98C-22(47-80) T98C-22 47 80clay, gray T98C-23(0-13) T98C-23 0 13silt, brown-black, organic-rich (smells like a sewer) T98C-23(13-24) T98C-23 13 24clay, broken fragments of red and gray clay (plowed?) T98C-23(24-40) T98C-23 24 40silt, dark gray T98C-23(40-50) T98C-23 40 50clay T98R-24(0-5) T98R-24 0 5mud, black, organic-rich T98R-24(5-50) T98R-24 5 50silt, red-brown, with lenses of red-gray sand, and gray clay (plowed?) T98R-24(50-60) T98R-24 50 60clay, gray T98R-24(60-75) T98R-24 60 75sand, coarse, gray to red-brown T98R-24(75-95) T98R-24 75 95clay, gray T98C-25(0-5) T98C-25 0 5silt, light brown, organic-bearing T98C-25(5-6) T98C-25 5 61980 Mt. St. Helens ash, very fine-grained, very pale gray T98C-25(5-15) T98C-25 5 15silt, red-brown T98C-25(15-21) T98C-25 15 21silt, organic-bearing, brown-black T98C-25(21-26) T98C-25 21 26silt, with dark brown and red-brown horizontal lenses T98C-25(26-140) T98C-25 26 140silt T98C-25(140-150) T98C-25 140 150silt and clay, red-brown T98C-25(150-165) T98C-25 150 165silty clay, gray T98C-25(165-175) T98C-25 165 175clay, light gray T98C-26(0-3) T98C-26 0 3soil, dark brown, organic-rich T98C-26(3-25) T98C-26 3 25clay, red-brown, with horizontal lenses of gray clay T98C-26(25-40) T98C-26 25 40clay, gray T98R-27(0-15) T98R-27 0 15silt, red-brown, organic-rich T98R-27(15-60) T98R-27 15 60silt, light gray with small fragments of red-brown silt (plowed?) T98R-27(60-100) T98R-27 60 100silt, light gray with small fragments of red-brown silt (plowed?) T98R-27(100-134) T98R-27 100 134silt, light gray with small fragments of red-brown silt (plowed?) T98R-27(134-161) T98R-27 134 161sand, very fine-grained, with small fragments of red silt (plowed?) T98R-27(161-180) T98R-27 161 180silt and sand, red-brown, with fragments of red silt (plowed?) T98R-27(180-190) T98R-27 180 190silt, red brown, with small fragments of gray silt (plowed?) T98R-27(190-200) T98R-27 190 200fine-grained silt, blue gray T98R-28(0-2.5) T98R-28 0 3silt, black-gray-brown, organic-bearing T98R-28(2.5-3) T98R-28 3 31980 Mt. St. Helens ash, very fine-grained, very pale gray T98R-28(3-11) T98R-28 3 11silt, black-gray-brown, organic-bearing T98R-28(11-17) T98R-28 11 17silt, light brown T98R-28(17-30) T98R-28 17 30clay, red T98R-28(30-45) T98R-28 30 45clay, black to gray T98R-28(45-60) T98R-28 45 60clay, black T98R-28(60-100) T98R-28 60 100clay, gray T98R-28(100-135) T98R-28 100 135clay, gray, with small fragments of red clay T98R-29(0-10) T98R-29 0 10clay, red-brown, organic-bearing T98R-29(10-30) T98R-29 10 30clay, red-brown, with fragments of black organics and gray clay T98R-29(30-60) T98R-29 30 60clay, gray, with small fragments of very red clay throughout (plowed?) T98R-29(60-75) T98R-29 60 75clay, gray with fragments of very red clay, decreasing downward T98R-29(75-100) T98R-29 75 100clay, gray T98R-29(100-120) T98R-29 100 120silt, gray, grading downward to medium-grained sand, mostly gray T98R-30(0-4) T98R-30 0 4silty soil, red-brown, organic-bearing T98R-30(4-4.9) T98R-30 4 51980 Mt. St. Helens ash, very fine-grained, very pale gray T98R-30(4.9-14) T98R-30 5 14silt, red-brown, with rootlets T98R-30(14-80) T98R-30 14 80silt, black-gray T98R-31(0-5) T98R-31 0 5silt, red-brown, with organic debris T98R-31(5-6) T98R-31 5 61980 Mt. St. Helens ash, very fine-grained, very pale gray T98R-31(6-35) T98R-31 6 35silt, with rootlets T98R-31(35-52) T98R-31 35 52silt, with horizontal lenses of gray sand, 4 to 5 cm thick T98R-31(52-63) T98R-31 52 63silt T98R-31(63-135) T98R-31 63 135sand, very fine-grained, dark red-brown T98R-31(135-155) T98R-31 135 155silt, coarse, orange-red T98R-31(155-165) T98R-31 155 165silt, orange red, with fragments of gray clay T98R-31(165-185) T98R-31 165 185silt and very fine sand, orange-red T98R-31(185-190) T98R-31 185 190silt, red-brown, with fragments of gray clay T98R-32(0-2) T98R-32 0 2silt, dark brown, organic-rich T98R-32(2-55) T98R-32 2 55silt, red-brown, with organic debris, and sand layers, dark red to black T98R-32(55-85) T98R-32 55 85silt, red-brown T98R-32(85-110) T98R-32 85 110silt, red-brown, with horizontal layers of red-orange clay T98R-32(110-180) T98R-32 110 180silt, red-orange, with fragments of gray silt and clay T98R-33(0-5) T98R-33 0 5silt, dark brown, organic-rich T98R-33(5-10) T98R-33 5 10silt, red-brown T98R-33(10-21) T98R-33 10 21silt, brown T98R-33(21-40) T98R-33 21 40silt, red, with lenses of fine sand, dark brown T98R-33(40-45) T98R-33 40 45silt, dark gray with fragments of red silt T98R-33(45-60) T98R-33 45 60silt, light gray, with fragments of red silt T98R-33(60-145) T98R-33 60 145silt, yellow to reddish yellow T98R-33(145-185) T98R-33 145 185clay T98R-34(0-15) T98R-34 0 15silt, black-gray, organic-bearing T98R-34(15-22) T98R-34 15 22silt T98R-34(22-40) T98R-34 22 40clay, brown-black T98R-34(40-60) T98R-34 40 60silty clay, dark brown T98R-34(60-90) T98R-34 60 90clay, dark brown T98L-35(0-18) T98L-35 0 18clay, brown and gray, organic-bearing T98L-35(18-52) T98L-35 18 52clay, gray, water-saturated T98L-35(52-72) T98L-35 52 72silt, gray T98L-35(72-92) T98L-35 72 92sand to silt, gray T98L-35(92-115) T98L-35 92 115mixed silt, sand and clay, in order of decreasing abundance T98L-35(115-139) T98L-35 115 139sand, fine-grained, gray T98L-35(139-161) T98L-35 139 161silt, gray T98L-35(161-195) T98L-35 161 195clay, gray T98L-36(0-10) T98L-36 0 10sand, medium-grained, light brown T98L-36(10-16) T98L-36 10 16sand, fine-grained, gray, cross-bedded T98L-36(16-16.5) T98L-36 16 171980 Mt. St. Helens ash, very fine grained, very pale gray T98L-36(16.5-25) T98L-36 17 25sand, medium-grained T98L-36(25-30) T98L-36 25 30silt, red-brown T98L-36(30-65) T98L-36 30 65sand, fine-grained, gray, cross-bedded T98L-36(65-90) T98L-36 65 90sand, fine-grained, red T98L-36(90-105) T98L-36 90 105sand, yellow T98L-36(105-120) T98L-36 105 120sand, yellow, with clasts of gray clay T98L-36(120-165) T98L-36 120 165sand, yellow-gray T98L-36(165-180) T98L-36 165 180silt, gray T98L-36(180-195) T98L-36 180 195sand, fine-grained, gray T98L-37(0-35) T98L-37 0 35clay, gray, with organic debris and fragments of red clay (plowed?) T98L-37(35-45) T98L-37 35 45clay, gray, water-saturated, with fragments of red clay (plowed?) T98L-37(45-65) T98L-37 45 65clay, dark gray, with fragments of light gray clay (plowed?) T98L-37(65-200) T98L-37 65 200clay, gray, dark gray, and light gray T98L-38(0-5) T98L-38 0 5clay, dark brown, with limonite-cemented tubes of red clay around roots T98L-38(5-45) T98L-38 5 45clay, dark brown, organic-brearing T98L-38(45-55) T98L-38 45 55clay, gray, organic-bearing T98L-38(55-75) T98L-38 55 75clay, medium gray, organic-bearing T98L-38(75-105) T98L-38 75 105clay, gray, organic-bearing T98L-38(105-125) T98L-38 105 125clay, dark gray, organic-bearing T98L-38(125-185) T98L-38 125 185clay, brown-red, organic-bearing T98L-38(185-195) T98L-38 185 195clay, organic-bearing, with fragments of light gray and red-brown clay T98L-38(195-205) T98L-38 195 205clay T98M-39(0-5) T98M-39 0 5silt, dark brown, organic-bearing, with fragments of 1980 Mt. St. Helens ash T98M-39(5-30) T98M-39 5 30silt, fine-grained, dark brown, organic-bearing T98M-39(30-58) T98M-39 30 58clay, gray-brown, organic-bearing T98M-39(58-85) T98M-39 58 85clay, gray to dark brown T98M-39(85-135) T98M-39 85 135clay, gray, with fragments of light yellow to red-brown clay T98M-39(135-147) T98M-39 135 147silt, yellow-gray T98M-39(147-175) T98M-39 147 175clay, gray, with fragments of red-brown clay T98M-39(175-205) T98M-39 175 205clay, gray T98M-40(0-15) T98M-40 0 15silt, dark brown, organic-bearing, with small red fragments T98M-40(15-48) T98M-40 15 48silt, gray, organic-bearing, with red fragments, and red stain around rootlets T98M-40(48-130) T98M-40 48 130silty clay, dark brown T98M-40(130-155) T98M-40 130 155clay, light gray, with small fragments of red-brown clay T98M-40(155-168) T98M-40 155 168clay T98M-40(168-180) T98M-40 168 180clay, light gray with small fragments of red clay T98M-40(180-195) T98M-40 180 195silt, light gray T98L-41(0-10) T98L-41 0 10clay, gray, organic-bearing T98L-41(10-40) T98L-41 10 40silt, red-brown T98L-41(40-52) T98L-41 40 52clay, gray, with fragments of red-black clay T98L-41(52-70) T98L-41 52 70peat, black T98L-41(70-105) T98L-41 70 105clay, gray T98L-42(0-11) T98L-42 0 11clay, red-brown, organic-bearing T98L-42(11-25) T98L-42 11 25clay, gray, organic-bearing, with fragments of red clay T98L-42(25-35) T98L-42 25 35clay, organic-rich, dark gray T98L-42(35-45) T98L-42 35 45peat, dark gray T98L-42(45-110) T98L-42 45 110clay, gray T98L-42(110-120) T98L-42 110 120silt T98M-43(0-2) T98M-43 0 2silt, organic-bearing T98M-43(2-2.5) T98M-43 2 31980 Mt. St. Helens ash, very fine-grained, very pale gray T98M-43(2.5-20) T98M-43 3 20silt, organic-bearing T98M-43(20-30) T98M-43 20 30silt, dark brown T98M-43(30-135) T98M-43 30 135silt, light brown to brown T98M-43(135-155) T98M-43 135 155fine silt, brown T98M-43(155-190) T98M-43 155 190silt, yellowish brown