Densities from samples taken in the CDE area gm/cm3,Lat,Long,GravSta 2.60,552540,1313038,SK16 2.86,550227,1313012,SQ 6 2.92,55 893,1313180,SQ15 2.59,551960,1313125,SK01 2.75,552810,1313180,SK18 2.84,550005,1313164,ST76 2.62,550564,1313259,SQ 8 3.00,550170,1313249,SQ10 2.80,545978,1313207,SU70 2.78,545292,1313390,ST40 2.81,55 765,1313400,ST81 2.73,551167,1313479,SQ18 3.00,55 119,1313451,SQ11 2.78,55 570,1313522,SQ14 3.16,545724,1313598,ST38 2.91,55 700,1313580,ST80 3.01,554400,1313591,SK79 2.84,551768,1313691,SK52 2.68,551070,1313621,SQ17 2.72,551441,1313615,SQ20 2.71,55 445,1313660,ST79 2.99,55 210,1313880,SQ12 2.70,554376,1313835,SK76 2.69,553311,1313992,SK96 3.02,553500,1314085,SK88 2.78,554270,1314001,SK75 2.64,553160,1314238,SK94 2.90,553973,1314250,SK82 2.68,561148,1314300,SY81 2.73,553858,1314330,SK83 2.67,553264,1314524,SK90 2.80,553250,1314780,SK91 2.71,554035,1314897,SK71 2.73,553159,1315095,SK60 2.72,553601,1315308,SK68 2.69,561358,1315580,QY12 2.72,553488,1315560,SK63 2.76,553193,1315652,SK61 2.74,544915,1315728,ST90 2.78,561172,1315709,QY14 2.77,561466,1315742,QY11 2.71,561624,1315704,QY10 2.96,55 923,1315752,ST 7 2.66,553784,1315864,SK65 2.58,55 64,1315866,ST33 2.70,561775,1315820,QY 9 2.72,56 371,1315870,SY75 2.79,551362,1315895,SU38 2.71,545421,1315841,SQ24 2.74,56 961,1315809,SY77 2.60,545074,1315802,SQ30 2.85,55 225,1315877,ST16 2.82,545757,1315801,SQ21 2.74,55 500,1315980,ST13 2.72,561899,1315990,QY 8 2.72,544390,1315970,ST96 2.74,55 950,1315936,SU41 2.72,545645,1315985,ST82 2.80,545131,1315969,ST84 2.88,544970,1315941,ST89 2.72,55 667,1315960,SU44 2.84,551233,1315920,SU39 3.05,545865,1315979,ST34 2.75,544801,132 64,SQ33 2.78,555805,132 60,SY73 2.67,544145,132 85,ST98 3.18,544680,132 71,ST93 2.80,562188,132 40,QY 5 2.63,55 740,132 58,ST 9 2.95,545421,132 128,SQ26 2.82,544560,132 101,ST94 2.82,55 798,132 122,SU43 2.70,545124,132 244,ST86 2.86,544200,132 289,ST99 2.71,562125,132 239,QY 4 2.73,561317,132 210,QY16 2.84,56 353,132 360,QY19 2.75,55 528,132 310,SU46 2.74,55 790,132 313,ST12 2.71,562258,132 361,QY 3 2.75,545362,132 312,SQ27 2.64,545030,132 344,ST87 2.82,551294,132 489,SV95 2.95,551481,132 443,SV94 2.72,56 650,132 418,SC77 2.83,551816,132 440,SV91 3.08,544891,132 480,SQ31 2.67,544219,132 490,SP 1 2.78,55 734,132 570,ST11 3.08,55 57,132 541,ST20 2.79,544118,132 540,SQ34 2.75,545827,132 540,ST21 2.77,551700,132 564,SU15 2.85,55 324,132 569,SU54 2.56,56 273,132 659,QY20 2.92,551574,132 628,SU16 2.74,55 24,132 691,ST22 2.99,554072,132 658,SJ18 2.73,55 218,132 630,SU57 2.69,551365,132 725,SU35 2.74,544377,132 750,SP 2 2.71,545909,132 730,ST23 2.63,56 586,132 822,SC75 2.78,562290,132 817,QY 1 2.76,551987,132 871,SU12 2.73,551060,132 870,SV98 2.73,55 410,132 853,SU55 2.81,551200,132 849,SV97 3.03,562089,132 829,SY96 2.70,55 98,132 950,SU59 2.62,544470,132 990,SP 3 2.74,552132,132 986,SU11 2.66,555540,132 942,SC61 2.76,545850,132 952,ST24 2.81,551422,132 933,SU18 2.78,551319,1321030,ST02 2.90,552240,1321029,SW79 2.79,554580,1321089,SY70 2.71,56 437,1321002,SC74 2.87,555520,1321181,SC62 2.77,544240,1321140,SQ36 2.93,545641,1321198,ST27 2.78,55 745,1321194,SU50 2.75,545966,1321120,ST28 2.72,562549,1321187,SY99 2.52,56 140,1321215,SC67 2.68,544363,1321219,SQ37 2.65,56 364,1321205,SC70 2.78,552809,1321250,SV61 2.56,555735,1321252,SC64 2.66,56 377,1321220,QY21 2.59,555898,1321209,SC65 2.66,55 61,1321351,SU61 2.65,562362,1321373,SY93 2.79,56 490,1321365,SC71 2.95,551494,1321340,SU20 2.68,544634,1321391,SQ40 2.52,555586,1321334,SC63 2.70,551484,1321395,SU22 2.71,551328,1321310,ST03 2.62,55 161,1321440,SU62 2.92,553173,1321437,SY56 2.68,551359,1321425,SU34 2.93,544919,1321447,SQ47 2.62,551075,1321455,ST05 3.03,554559,1321515,SY68 2.79,545940,1321622,ST29 2.68,544882,1321650,SQ48 2.69,545940,1321622,ST30 2.77,554578,1321698,SY67 2.75,552659,1321685,SW98 2.87,544271,1321681,SQ42 2.63,55 189,1321701,SU65 2.75,545148,1321769,SQ64 2.56,551339,1321740,SU28 2.74,544752,1321731,SQ60 2.84,552519,1321778,SW83 2.79,544980,1321701,SQ63 2.66,544749,1321718,SQ45 2.79,553026,1321708,SV63 2.64,545210,1321720,SQ68 2.75,545442,1321861,SQ70 2.62,545890,1321881,ST31 2.75,544660,1321850,SQ44 2.71,553089,1321936,SV64 2.67,544494,1321903,SQ43 2.72,544968,1321999,SP 7 2.66,552925,1321965,SU 1 2.94,561429,1321980,QY31 2.85,552409,1321974,SW84 2.97,544609,1322029,SQ59 2.68,562822,1322020,SY89 2.67,545378,1322069,SQ71 2.75,551039,1322020,SU31 2.67,55 792,1322103,SU33 3.01,544863,1322191,SQ62 2.79,544728,1322191,SQ61 2.70,545585,1322150,SP15 2.62,553168,1322179,SV65 2.94,552901,1322153,SU 2 2.85,552660,1322136,SW96 2.81,553862,1322129,SY62 2.76,56 200,1322250,SV54 2.76,552157,1322210,SW87 2.69,553029,1322263,SU 4 2.80,544946,1322380,SQ49 2.71,561703,1322358,QY42 2.79,561233,1322376,QY36 2.99,56 89,1322302,SV55 2.90,545230,1322391,SP 8 2.64,545721,1322358,SP14 2.75,561444,1322371,QY40 2.54,545546,1322381,SP11 2.87,55 210,1322430,SP18 2.80,551537,1322441,SU25 2.81,545900,1322450,SP16 2.88,554175,1322564,SW66 2.62,561127,1322538,QY37 2.78,545641,1322568,SP12 2.63,545770,1322540,SP13 2.69,553242,1322500,SV67 2.73,56 101,1322549,SV53 2.71,562090,1322510,QY44 2.96,545490,1322603,SP21 2.64,545370,1322635,SP22 2.89,554339,1322670,SW65 2.88,552470,1322790,SW91 2.88,553750,1322732,SY65 3.17,553329,1322749,SV68 2.50,56 600,1322775,SV47 2.68,544740,1322730,SQ54 2.70,561244,1322727,QY39 2.90,554246,1322871,SW67 2.80,551988,1322805,SW95 2.72,55 319,1322870,SM82 2.79,554702,1322818,SW62 2.85,562043,1322873,QY45 2.71,56 410,1322882,SV46 2.68,551541,1322800,SU26 2.83,56 165,1322892,SV52 2.92,554080,1322802,SW68 2.67,552318,1322880,SW92 2.71,545781,1322911,SP27 2.66,544656,1322921,SQ53 2.75,544949,1322991,SQ51 2.85,554799,1322931,SW61 2.74,55 489,1322940,SM83 2.73,55 360,1323062,SM84 2.72,545673,1323046,SP31 2.68,56 445,1323127,SV45 2.68,55 702,1323142,SM87 2.95,553125,1323136,SV90 2.92,545565,1323141,SP25 2.78,55 546,1323290,SM86 2.79,545920,1323238,SM76 2.71,561967,1323251,QY46 2.77,55 131,1323282,SM78 2.68,551660,1323259,SM62 2.81,554107,1323300,SW71 2.77,55 650,1323354,SM88 2.66,553733,1323305,SV72 2.78,562957,1323379,SC88 2.69,562432,1323320,SC84 2.73,562133,1323319,QY48 2.71,562317,1323362,QY61 2.71,553050,1323480,SV78 2.51,561744,1323450,QY47 2.60,56 731,1323480,SV44 2.68,55 285,1323462,SM79 2.55,561453,1323582,QY59 2.70,56 327,1323558,SV38 2.61,561590,1323512,QY60 2.72,56 195,1323550,SV37 2.88,55 928,1323561,SM55 2.62,56 965,1323530,SV43 2.83,562698,1323605,SC85 2.64,551148,1323620,SM57 2.70,55 548,1323640,SM90 2.72,56 76,1323641,SV36 2.66,55 792,1323671,SM54 2.81,555455,1323690,SW57 2.77,551712,1323740,SM63 2.95,562512,1323787,SW18 2.94,55 490,1323791,SM52 2.70,56 526,1323719,SV39 2.71,55 335,1323794,SM51 2.72,545277,1323738,SL17 2.88,544736,1323709,SL24 2.73,545043,1323800,SL19 2.79,544901,1323860,SL23 2.65,551165,1323884,SM65 2.73,56 199,1323830,SV35 2.72,561880,1323939,SW23 2.83,561780,1323900,SW24 2.70,551598,1323920,SM60 2.77,552571,1323991,SV83 2.73,545200,1323968,SL18 2.73,544947,1324076,SL22 2.65,561435,1324071,QY57 2.75,544050,1324030,SP36 2.79,562124,1324051,SW21 2.72,56 600,1324098,SV32 2.94,545873,1324119,SM44 2.73,561004,1324124,QY53 2.69,545550,1324169,SM45 2.79,552470,1324168,SV84 2.67,544032,1324228,SP37 2.49,561344,1324252,QY56 2.68,545089,1324209,SL21 2.71,561129,1324227,QY54 2.71,55 931,1324300,SM68 2.81,561020,1324356,QY51 2.71,545495,1324390,SM46 2.74,555826,1324306,SW54 2.74,56 697,1324307,SV31 2.72,56 870,1324309,QY50 2.77,555941,1324476,SW53 2.67,545670,1324421,SM95 2.66,544011,1324465,SP38 2.88,544918,1324477,SL 9 3.05,544444,1324402,SL26 2.68,55 851,1324470,SL51 2.72,544577,1324509,SL28 2.78,544136,1324610,SP39 2.70,545783,1324680,SN92 2.80,545617,1324669,SL15 2.99,55 960,1324620,SL52 2.97,545238,1324792,SL12 2.71,544852,1324752,SL10 2.65,561485,1324830,SW28 2.59,551039,1324830,SL53 2.71,551528,1324987,SM72 2.76,545689,1324939,SM96 2.77,551350,1324986,SM71 2.66,545516,1324926,SL14 2.82,55 61,1324900,SM39 2.72,551201,1324930,HYDA 2.80,544277,1324902,SQ82 2.72,562690,1325052,SW15 2.71,545290,1325041,SL 6 2.74,561440,1325019,SW29 2.70,545906,1325049,SN91 2.69,56 367,1325005,SW49 2.94,55 559,1325118,SM18 2.68,56 189,1325110,SV30 2.66,551629,1325159,SM74 2.93,56 506,1325139,SW48 2.70,544493,1325130,SQ86 2.68,561441,1325275,SW30 2.80,545720,1325260,SM97 3.01,56 770,1325229,SW46 2.73,55 712,1325280,SM17 3.02,55 994,1325223,SM13 2.66,552130,1325396,SP80 3.05,55 436,1325320,SM21 2.78,551115,1325383,SM14 2.80,545940,1325340,SN90 2.79,55 220,1325340,SM37 2.59,545579,1325365,SL 3 2.75,55 857,1325319,SM16 2.85,56 625,1325411,SW45 2.85,55 578,1325401,SM22 2.68,551388,1325486,SN61 2.68,561391,1325580,SW35 2.80,551031,1325560,SM15 2.68,545720,1325528,SL01 2.69,561065,1325511,SW41 2.99,545590,1325610,SL 2 2.72,544730,1325635,SQ89 2.69,545810,1325654,SM98 2.90,56 758,1325640,SW44 2.68,544985,1325665,SP43 2.59,551238,1325642,SN62 2.75,55 824,1325612,SM24 2.85,561055,1325780,SW40 2.70,55 998,1325795,SM25 2.70,544877,1325787,SP41 2.74,551599,1325741,SN68 2.75,552203,1325719,SP81 2.79,544850,1325833,SQ90 2.80,545918,1325801,SN89 2.70,55 380,1325826,SM34 2.69,55 219,1325872,SN87 2.71,551299,1325900,SN63 2.77,552700,133 3,SP87 2.70,545205,133 79,SP46 2.72,561529,133 0,SW33 2.68,55 322,133 42,SN83 2.73,553738,133 24,QA47 2.72,55 680,133 80,SM33 2.67,551446,133 67,SN66 2.77,551228,133 72,SN64 2.70,551071,133 137,SM26 2.87,55 848,133 150,SM28 2.62,551078,133 136,SN78 2.69,55 512,133 109,SN79 2.70,562851,133 190,SX91 2.66,545578,133 105,SQ93 2.75,552350,133 222,SP83 2.75,562229,133 289,SX96 2.72,561916,133 258,SX98 2.84,545480,133 267,SQ92 2.71,551600,133 210,SN71 2.72,56 923,133 272,SV16 2.71,551351,133 277,SN65 2.66,552142,133 281,SP76 2.74,545288,133 251,SP47 3.14,55 861,133 369,SM29 2.72,561691,133 360,SV 8 2.82,55 579,133 316,SN80 2.52,562070,133 390,SX97 2.69,56 650,133 341,SV19 2.77,55 991,133 375,SM31 2.70,561448,133 423,SV11 2.84,545466,133 480,SQ91 2.83,551459,133 420,SN73 2.72,553520,133 460,SP97 2.68,552341,133 478,SP74 2.62,553729,133 419,QA51 2.72,56 221,133 410,SV24 2.75,551121,133 435,SM32 2.79,551633,133 465,SN72 2.87,551122,133 440,SN77 2.69,552531,133 459,SP85 2.78,56 812,133 429,SV18 2.68,55 540,133 570,SN81 2.73,56 340,133 561,SV23 2.93,551297,133 570,SN75 2.66,545709,133 661,SP51 2.51,561887,133 631,SX99 2.73,56 699,133 720,SV21 2.68,552657,133 719,SP90 2.55,552382,133 700,SP73 2.66,561665,133 714,SV 7 2.55,553151,133 720,SP94 2.70,553662,133 747,QA35 2.75,552279,133 772,SP72 2.69,553486,133 872,SP99 2.67,561619,133 870,SV 6 2.61,552751,133 849,SP91 2.78,55 9,133 939,SQ96 2.74,545760,133 912,SQ94 2.64,561980,133 951,SV01 2.95,553595,133 929,QA36 2.64,561980,133 951,SV01 2.67,555014,133 951,QZ72 2.86,551251,133 951,SP57 2.76,55 90,133 913,SN86 2.70,555168,133 918,QZ73 2.68,55 932,1331079,SN 8 2.71,561812,1331000,SV05 2.65,55 325,1331012,SQ99 2.68,552269,1331048,SP70 2.56,55 160,1331038,SQ97 2.78,551155,1331000,SP56 2.86,551596,1331004,SP62 2.83,553489,1331087,QA37 2.68,553026,1331015,SM 3 2.70,555314,1331114,QZ75 2.78,562029,1331184,SV 4 2.70,555157,1331126,QZ76 2.75,553478,1331274,QA38 2.82,551135,1331255,SP55 2.68,555144,1331346,QZ77 2.59,55 342,1331313,SQ98 2.69,55 979,1331364,SP54 2.68,553302,1331365,QA41 2.70,55 639,1331301,SN 2 2.69,551344,1331334,SP59 2.73,554787,1331463,QZ61 2.78,553414,1331402,QA39 2.70,555450,1331499,QZ81 2.72,551890,1331489,SP64 2.69,551485,1331425,SN15 2.82,554550,1331497,QZ57 2.67,553105,1331461,QA34 2.87,552220,1331511,SP68 2.74,56 180,1331560,QN68 2.70,555879,1331569,QN73 2.72,551340,1331512,SN14 2.86,553158,1331674,QA33 2.88,56 849,1331624,QN58 2.76,551978,1331620,SP65 2.72,553461,1331621,QA42 2.68,553009,1331686,SN44 2.69,555689,1331646,QN74 2.78,56 693,1331688,QN59 2.81,56 966,1331721,QN57 2.78,56 165,1331759,QN67 2.61,554452,1331704,QZ56 2.68,554619,1331703,QZ62 2.73,56 10,1331745,QN70 2.73,551303,1331763,SN13 2.74,552107,1331706,SP66 2.70,56 580,1331720,QN60 2.63,552893,1331843,SN43 2.71,551990,1331845,SN17 2.64,553250,1331870,TB85 2.66,56 480,1331861,QN63 2.67,553542,1331804,QA43 2.72,554271,1331925,QZ52 2.63,554842,1331971,QZ64 2.66,56 90,1331941,QN71 2.71,554603,1331980,QZ55 2.87,554719,1331981,QZ69 2.64,553571,1331977,QA44 2.90,555468,1331906,QZ83 2.71,56 553,1332099,QN62 2.77,555605,1332172,QN75 2.66,555345,1332119,QZ66 2.64,553653,1332131,QA45 2.68,554301,1332118,QZ51 2.68,555069,1332143,QZ68 2.72,551365,1332248,QZ26 2.69,56 96,1332272,QA84 2.68,554700,1332214,QA71 2.86,555432,1332244,QZ84 2.69,554420,1332299,QZ50 2.65,554910,1332291,QA72 2.83,553414,1332320,QA30 2.68,56 493,1332313,QN61 2.69,554190,1332384,QZ42 2.67,555860,1332352,QA82 2.70,555290,1332350,QA74 2.84,552692,1332462,SN40 2.84,554448,1332491,QZ48 2.71,554340,1332485,QZ49 2.54,551268,1332498,QZ25 2.79,56 978,1332479,QN54 2.62,551970,1332546,SN21 2.64,553424,1332545,QA29 2.68,554753,1332682,QA69 2.84,554024,1332625,QA53 2.77,555724,1332618,QA81 2.66,555348,1332677,QA75 2.70,555601,1332660,QA80 2.96,56 993,1332650,QN53 2.97,553132,1332661,QA26 2.69,552912,1332601,QZ04 2.75,553338,1332693,QA28 2.64,553227,1332738,QA27 2.69,551902,1332776,SN22 2.75,56 61,1332769,QA87 2.80,551752,1332720,SN23 2.77,554513,1332735,QZ47 2.65,552620,1332718,SN39 2.94,56 175,1332867,QA88 2.70,554751,1332949,QA68 2.87,56 287,1332912,QA89 2.77,555844,1332905,QA92 2.69,555487,1332917,QA79 2.81,554382,1332917,QZ43 2.69,554882,1332971,QA67 2.78,555657,1332948,QA93 2.81,554237,1332975,QA54 2.64,561102,1333048,QN44 2.88,552189,1333076,SN35 2.72,56 58,1333028,QA90 2.99,554699,1333049,QZ46 2.72,56 761,1333135,QN48 2.90,554161,1333206,QA55 2.69,553037,1333207,QA22 2.68,554960,1333217,QA66 2.64,553941,1333292,QA10 2.75,56 580,1333272,QP94 2.67,552577,1333236,QA17 2.55,555897,1333219,QM25 2.65,552936,1333281,QA21 2.62,554067,1333332,QA09 2.69,561021,1333301,QN41 2.72,56 446,1333378,QP97 2.88,553851,1333374,QA11 2.94,552234,1333325,QA16 2.68,552828,1333408,QA20 2.79,552011,1333425,SN30 3.02,552587,1333445,QZ08 2.77,554230,1333458,QA56 2.81,555019,1333462,QA65 2.67,555849,1333438,QM24 2.72,56 803,1333410,QN49 2.79,552809,1333598,QA19 2.70,553032,1333510,QA23 2.67,554097,1333519,QA08 2.78,553988,1333520,QA12 2.75,561100,1333510,QN40 2.76,553256,1333536,QA25 2.80,552690,1333527,QA18 2.72,56 605,1333567,QP93 2.79,553150,1333516,QA24 2.67,553810,1333627,QA14 2.90,552520,1333660,QZ09 2.71,555706,1333611,QM23 2.71,561237,1333635,QN39 2.73,56 840,1333670,QP90 2.55,551462,1333622,SN26 2.66,551588,1333635,SN27 2.66,554867,1333630,QA64 2.72,56 899,1333745,QP89 2.70,555003,1333793,QA63 2.85,553517,1333720,QA00 2.66,561314,1333791,QP86 2.72,554149,1333771,QA07 2.72,561441,1333751,QP85 2.69,555792,1333799,QM22 2.70,56 640,1333772,QP92 2.73,56 765,1333850,QP91 2.67,552078,1333858,QZ31 2.70,56 509,1333822,QP99 2.72,561196,1333874,QP88 2.62,555542,1333820,QM20 2.75,553649,1333835,QA02 2.65,551632,1333918,QZ27 2.62,551868,1333914,QZ29 2.67,555683,1333971,QM21 2.70,554909,1333957,QA62 2.66,553748,1333901,QA03 2.69,554740,1333948,QA61 2.75,56 641,1334071,QM01 2.67,551759,1334007,QZ28 2.71,553941,1334052,QA04 2.91,554555,1334010,QA59 2.68,555141,1334045,QM16 2.76,56 449,1334075,QM02 2.71,555291,1334050,QM17 2.71,552237,1334014,QZ32 2.77,555521,1334010,QM19 2.70,552721,1334185,QZ36 2.69,554705,1334186,QA60 2.77,56 302,1334188,QM03 2.75,553984,1334237,QA05 2.78,555428,1334229,QM18 2.73,56 188,1334370,QM04 2.90,553334,1334351,QZ20 2.70,555544,1334360,QN77 2.73,553193,1334477,QZ21 2.72,555570,1334599,QN79 2.73,56 78,1334511,QM05 2.72,555451,1334602,QN78 2.70,555950,1334634,QM06 2.90,552760,1334705,QZ34 2.56,555829,1334720,QM07 2.67,555525,1334790,QN80 2.70,555736,1334860,QM08 2.71,555630,1334850,QN81 2.92,552631,1334900,QZ33 2.81,555406,1335040,QM13 2.78,555492,1335089,QM12 2.57,555250,1335182,QM15 2.73,555592,1335122,QM11 2.78,555622,1335359,QM10 2.70,555535,1335549,QM09 2.74,56 500,1335979,QM35 2.68,561152,134 55,QN96 2.72,561018,134 129,QN97 2.77,56 843,134 170,QM38 2.79,56 881,134 150,QN98 2.75,56 600,134 159,QM36 2.72,561572,134 246,QN94 2.72,561255,134 307,QN95 2.69,561522,134 430,QN89 2.74,561375,134 503,QN88 2.71,56 830,134 581,QM32 2.77,56 595,134 535,QM34 2.68,561133,134 600,QN84 2.78,56 693,134 670,QM33 2.68,561247,134 680,QN85 2.70,561005,134 681,QN83 2.68,562504,134 789,QM43 2.71,561011,134 870,QM27 2.70,56 894,134 805,QN82 2.75,561724,134 920,QL 3 2.72,56 883,1341021,QM30 2.73,561790,1341095,QL 4 2.75,555532,1341132,QA96 2.69,561141,1341161,QM28 2.89,555424,1341140,QA95 2.68,561023,1341169,QM29 2.64,555360,1341367,QA94 2.71,561839,1341425,QN99 2.65,555442,1341580,QA98 2.71,561602,1341610,QM40 2.69,555471,1341853,QZ91