West Florida Shelf Bottom Sample Data

Sample ID

latitude

longitude

water depth (m)

sed type

%CaCO3

%gravel

%sand

%silt

%clay

Visual Field Description Visual Lab Description

WFS97-1

2859.29'N

8521.50'W

60

(g)S

28.02

0.91

95.97

1.81

1.31

brown, fine to med. sand, lots of coarse biogenic material

WFS97-2

2858.28'N

8530.44'W

123

(g)S

59.14

3.93

86.13

6.99

2.95

"pit area," olive gray silty fine sand, lots of black grains

WFS97-3

2859.44'N

8526.68'W

57

gS

6.47

7.98

91.41

0.33

0.29

"large sandwave area," coarse, well-sorted sand, reddish brown, mainly silicate, but significant biogenic component

WFS97-4

2900.37'N

8526.62'W

54.9

gS

19.98

6.79

92.54

0.4

0.27

similar to 3, slightly less red

WFS98-1

2449.64'N

8235.16'W

31.6

(g)M

94.39

0.43

9.95

77.14

12.49

very clay-like gray clay

WFS98-2

2659.80'N

8350.30'W

65

(g)S

99

1.61

92.51

4.15

1.73

shell hash coarse gray sand/gravel, well-sorted, predom. biogenic

WFS98-3

2725.12'N

8404.90'W

72.8

(g)mS

96.48

1.05

60.48

33.35

5.12

"soupy", well mixed, hard to say that top of sediment represents top 2 cm of substrate tannish gray fine sand and clay, well-sorted

WFS98-4

2754.54'N

8421.84'W

68.2

(g)S

98.44

1.37

93.64

3.85

1.15

coarse sand med. sand and gravel (shell frags.), black, white, orange grains

WFS98-5

2828.10'N

8441.45'W

60.2

gS

95.04

5.36

90.2

3.04

1.4

1st attempt empty, fathometer shows hardbottom, 2nd coarse sand med. to cse. sand and gravel, ~50% dark grains, lots of biogenic material

WFS98-6

2900.07'N

8522.02'W

45.2

(g)S

28.41

2.44

96.95

0.32

0.3

coarse, well-sorted quartz sand w/ ~20% carbonate grains, orange.

WFS98-7

2859.80'N

8522.00'W

46

gS

16.25

6.66

92.86

0.23

0.25

coarse sand-similar to #6, mainly quartz, color is orange, but decompressing mass making it black

WFS98-8

2859.40'N

8521.92'W

57.7

(g)S

39.28

4.27

94.17

1.08

0.48

another coarse, orange, quartz sand with signif. biogenic comp. A little clay, slightly dirtier than #6

WFS98-9

2859.15'N

8522.00'W

60

gS

31.53

11.75

86.26

1.43

0.56

sand/gravel. medium sand is quartz. gravel is shells, slightly orange, more gray

WFS98-10

2859.10'N

8521.95'W

61.5

(g)S

20.33

2.78

95.36

1.23

0.64

medium quartz sand, slightly orange, ~10% shell ground

WFS98-11

2858.60'N

8521.94'W

70

(g)S

25.9

2.76

96.16

0.63

0.45

orange-brown med-sand, mainly quartz with shells (gravel)

WFS98-12

2858.10'N

8521.96'W

73

(g)S

37.05

3.2

95.45

0.86

0.49

med. orange-brown sand mainly quartz with shells (gravel)

WFS98-13

2858.90'N

8525.00'W

86.7

(g)mS

75.33

0.08

85.39

12.55

1.99

finer sediment than previous sites olive-gray silt to fine sand no coarse material

WFS98-14

2859.66'N

8525.00'W

69

gS

7.04

9.11

90.23

0.32

0.34

moving up the slope v. orange med. quartz sand w/5% shell gravel, no fines

WFS98-15

2900.40'N

8525.00'W

53

gS

44.19

8.61

90.65

0.37

0.36

on top of ridge light-orange med. sand/50% biogenic coarse sand to gravel

WFS98-16

2901.07'N

8524.97'W

52.5

(g)S

49.93

2.9

95.9

0.75

0.45

on top of bight; finishes the line of sites beginning w/M22 med. to coarse, well sorted sand 30% biogenic, light-coarse

WFS98-17

2858.83'N

8526.46'W

96

mS

79.72

0.05

81.22

16.77

1.96

back to the bottom of the southern facing slope of the bight area fine olive-gray silty sand

WFS98-18

2858.90'N

8527.21'W

77

gS

18.76

3.64

94.87

1.06

0.43

on the slope to the west of the last station med. orange sand w/5% shell gravel

WFS98-19

2859.63'N

8519.98'W

50.9

(g)S

11.2

0.88

98.25

0.43

0.45

coarse sand med. to coarse orange sand, mainly quartz 10% biogenic, no fines

WFS98-20

2859.06'N

8520.11'W

57.3

(g)S

16.04

1.19

97.84

0.54

0.43

coarse sand fine to med. orange-gray sand, 10% biogenic frags

WFS98-21

2858.38'N

8520.02'W

60.6

(g)S

11.96

3.78

95.23

0.45

0.54

slightly orange med. quartz sand, several shells and hard chunks, no fines * removed 1/2 ridged bivalve

WFS98-22

2859.02'N

8521.36'W

61.5

(g)S

22.62

1.57

97.35

0.64

0.44

coarse sand gray, slightly orange med. sand w/5% shell frags, no fines

WFS98-23

2858.90'N

8521.26'W

61.9

(g)S

19.06

1.86

95.62

1.82

0.69

2 drops. 1st: Epifauna only. 2nd: Coarse Sed. gray, fine to med. quartz sand, 5% shell frags. little fines

WFS98-24

2858.68'N

8521.25'W

64.2

(g)mS

52.98

0.09

84.56

12.81

2.55

olive-gray, silt fine sand much like #13

WFS98-25

2858.47'N

8521.19'W

63.2

(g)S

17.91

1.06

96.41

1.86

0.68

medium, well-sorted quartz sand 1% shell frags no fines, slightly orange, brown

WFS98-26

2858.74'N

8521.58'W

62.2

(g)S

20.65

1.23

95.38

2.25

1.15

olive med. quartz sand, shell frags (1%) occasional large chunks, well-sorted

WFS98-27

2859.40'N

8522.50'W

55

gS

48.84

5.08

93.63

0.81

0.48

pinkish, light orange/gray coarse sand (50% Quartz, 50% biogenic), no fines.

WFS98-28

2858.55'N

8529.00'W

112

(g)S

39.76

1.42

91.36

5.79

1.43

olive poorly-sorted silty fine sand w/ shell frags.

WFS98-29

2859.26'N

8529.00'W

70

gS

5.18

5.97

93.06

0.65

0.33

orange med. to coarse quartz sand no fines 1% biogenic

WFS98-30

2900.20'N

8529.20'W

61

(g)S

36.02

3.8

95.74

0.24

0.22

orange quartz sand, coarse, no fines, 5% biogenic

WFS98-31

2900.33'N

8532.85'W

116

(g)mS

45.24

0.19

66.33

27.76

5.73

olive, clayey silt, piece of grass

WFS98-32

2901.02'N

8532.68'W

91

gS

51.6

6.27

92.11

1.18

0.43

gray to orange med. quartz sand ~25% biogenic

WFS98-33

2901.00'N

8532.33'W

79

gS

69.93

10.81

88.01

0.72

0.47

pinkish orange med. to coarse 50/50 quartz/biogenic, 5% gravel, same stuff, samples 33-39

WFS98-34

2901.01'N

8531.71'W

74

gS

65.74

7.47

91.09

0.88

0.56

see WFS98-33

WFS98-35

2900.99'N

8531.22'W

71.5

(g)S

61.89

3.94

94.97

0.68

0.41

see WFS98-33

WFS98-36

2900.98'N

8530.72'W

68

gS

58.92

8.84

90.15

0.66

0.34

see WFS98-33

WFS98-37

2900.90'N

8529.75'W

63.1

gS

54.51

7.98

90.94

0.6

0.48

see WFS98-33

WFS98-38

2900.00'N

8530.60'W

68.7

gS

28.7

7.08

91.62

0.65

0.64

see WFS98-33 big chunk of hard bottom, (translucent, soft, elongated [rice like] grains under chunk)

WFS98-39

2859.50'N

8531.00'W

71.3

gS

42.46

10.14

88.78

0.65

0.44

see WFS98-33

WFS98-40

2858.90'N

8531.40'W

119.8

(g)S

8.85

2.81

91

4.43

1.76

well-sorted, orangey gray quartz sand 1% shell frags, no fines

WFS98-41

2905.00'N

8532.70'W

97.7

(g)mS

78.52

0.17

66.27

28.78

4.78

olive clayey silt cohesive

WFS98-42

2905.00'N

8532.30'W

94.5

(g)mS

78.03

0.02

79.74

17.23

3

olive clayey silt, cohesive, same as WFS98-41

WFS98-43

2905.00'N

8531.80'W

87

(g)S

42.8

0.03

94.77

3.47

1.72

olive silty fine sand, not cohesive

WFS98-44

2905.00'N

8531.30'W

73.4

(g)S

36.51

0.3

97.78

1.27

0.65

olive to gray, fine to med. sand (like WFS98-45)

WFS98-45

2905.00'N

8530.80'W

66.1

(g)S

38.64

0.21

98.56

0.73

0.5

same as WFS98-44

WFS98-46

2902.05'N

8529.01'W

58.8

gS

60.76

5.39

93.22

0.76

0.62

orange, coarse sand, 10% gravel mixed quartz and biogenic, no fines

WFS98-47

2903.04'N

8527.99'W

56

(g)S

41.73

4.01

94.77

0.7

0.52

med. to coarse orangey gray mixed quartz/biogenic sand no fines

WFS98-48

2904.28'N

8527.04'W

55.5

gS

31.7

9.43

89.27

0.83

0.48

gray med. quartz sand, 5% biogenic gravel

WFS98-49

2905.23'N

8526.27'W

54.2

gS

51.3

17.25

81.33

0.93

0.48

gray, poorly sorted quartz sand and gravel (biogenic)

WFS98-50

2906.20'N

8525.30'W

49.9

(g)S

14.3

0.15

98.75

0.58

0.52

olive/gray fine sand, 5% medium sand shell pieces

WFS98-51

2911.39'N

8540.58'W

69

Whoopie grounds, 1st pinnacle site and ROV station - 2 attempts, no sample on 1st, soft coral on 2nd, no sediment.

WFS98-101

2933.233'N

8558.601'W

38

92.72

39.91

58.84

0.85

0.4

coarse gravelly shell hash, reddish brown

WFS98-102

2933.067'N

8558.519'W

42

88.45

13.59

83.44

2.1

0.86

pinkish tan gravelly shell hash

WFS98-103

2933.091'N

8558.528'W

40.5

81.15

7.13

89.98

2.21

0.68

dark gray coarse sand, 90%+ biogenic
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