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U.S. Geological Survey
Open-File Report 03-441

DATA REPORT: Geology of Reef-Front Carbonate Sediment Deposits around Oahu, Hawaii

2000 Kailua vibracore tabulated petrologic data

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Core Depth (m) Sand (%) Mud (%) Color Name Color Number Grain Size Sorting Roundness Section Counts CARBONATE Calc Algae massive-encrusting branching Benthonic Forams Planktonic Forams Mollusks Serpulid Worm Tubes Bryozoans Echinoderms Halimeda Coral Frags coral w/ open corallites coral w/ filled corallites coral w/ encrusting algae Calc Sponge Spicules Carb Rock Frags reef rock cemented sediment Indeterm. Skeletal Grains VOLCANICS Basalt Olivine Feldspar Pore Space (artificial)
1v1 0.5     l. olive gray 5Y6/1 cL-vcU moderate r-R 303 99.0 51.0 47.0 4.0 1.5   3.0     0.5 13.5 16.0 3.0 11.0 2.0   13.5 8.0 5.5   1.0 1.0     34.0
1v1 2.0     l. olive gray 5Y6/1 mU-cU fair-mod r-R 324 100.0 55.0 53.5 1.5 2.5   2.5     0.5 9.0 17.0 6.5 8.5 2.0   8.5 2.5 6.0           38.3
1v1 2.7     yellowish gray 5Y8/1 fL-fU fair-mod A-a 355 99.0 17.5 17.5   9.5   0.5     2.0 27.5 20.5 18.5 1.5 0.5 4.5 1.0   1.0 16.0 1.0 0.5 0.5   43.7
2v1 1.0     yellowish gray 5Y8/1 vfU-fL fair-mod A-a 321 98.0 9.0 9.0   12.5   2.5     1.0 28.0 19.0 17.0 2.0   7.5 0.5 0.5   18.0 2.0 1.5 0.5   37.7
2v1 3.5     yellowish gray 5Y8/1 vfL-fL fair-mod A-a 326 98.0 8.5 8.5   12.5   1.5     0.5 27.5 15.5 15.0 0.5   5.0 1.5   1.5 25.5 2.0 0.5 1.5   38.7
3v1 1.0     yellowish gray 5Y8/1 vfL-fL fair-mod A-a 290 99.5 12.0 12.0   14.0   3.5     3.5 30.0 17.0 17.0     2.5 2.5 1.0 1.5 14.5 0.5   0.5   31.0
3v1 2.0     yellowish gray 5Y8/1 vfL-fU poor a-r 287 97.5 10.5 9.0 1.5 4.0   3.0     2.0 36.0 15.5 14.0 1.0 0.5 2.0 12.0 1.5 10.5 12.5 2.5 1.5 1.0   30.3
3v1 3.0     l. ol-yell gray 5Y6/1-8/1 vfL-cL very poor A-r 322 100.0 20.0 19.5 0.5 16.5   1.5     2.5 26.0 20.5 12.0 8.0 0.5 0.5 7.5 2.5 5.0 5.0         37.9
3v1 4.0     l. ol-yell gray 5Y6/1-8/1 vfL-cU very poor A-a 350 100.0 18.5 17.5 1.0 12.0   7.0     2.0 15.5 27.5 11.5 12.0 4.0 1.0 13.0 6.5 6.5 3.5         42.9
4v1 1.0 52.5 47.5 yellowish gray 5Y8/1 vfL-fL poor A-a 374 99.0 11.0 10.5 0.5 17.0   0.5     2.0 23.5 9.5 9.0 0.5   4.5 7.5   7.5 22.0 1.0 0.5 0.5   46.5
4v1 4.0 72.2 27.8 yellowish gray 5Y8/1 vfL-fL fair-mod A-a 333 99.5 11.0 11.0   19.5         1.5 18.5 9.0 9.0     5.0 2.0   2.0 32.0 0.5 0.5     39.9
5v1 0.5 96.3 3.7 l. ol-yell gray 5Y6/1-8/1 mU-cU fair-mod r-R 318 91.5 17.5 16.5 1.0 24.0   2.5     3.0 16.5 17.5 9.0 7.0 2.5   8.5 5.5 3.0 1.0 8.5 5.5 3.0   37.1
5v1 3.5 97.3 2.7 l. ol-yell gray 5Y6/1-8/1 fL-mL fair-mod a-r 321 85.5 21.0 20.5 0.5 13.5   2.0     4.0 12.5 23.0 16.0 6.5 0.5   7.0 4.0 5.0 2.5 14.5 11.0 3.5   37.7
6v1 1.0 93.6 6.4 yellowish gray 5Y8/1 fU-vcU+ poor A-a 327 100.0 10.0 10.0   36.0   1.5     1.0 39.0 7.0 3.0 1.5 2.5 0.5 3.0 0.5 2.5 2.0         38.8
6v1 4.0 88.0 12.0 yellowish gray 5Y8/1 fL-vcU+ poor A-r 354 100.0 6.0 5.0 1.0 27.5   3.5     2.0 66.0 3.0 0.5 0.5 2.0   1.0 1.0   1.0         43.5
7v1 1.0 84.8 15.2 yellowish gray 5Y8/1 vcU+ fair A-r 340 100.0 1.0 1.0   15.0   0.5       66.5 1.0 0.5 0.5     15.5   15.5 0.5         41.2
7v1 4.5 92.1 7.9 yellowish gray 5Y8/1 fL-vcU+ poor-fair A-r 406 100.0 3.0 3.0   11.5   0.5     1.5 81.0 0.5 0.5       2.0   2.0           50.7
8v1 1.0 90.3 9.7 yellowish gray 5Y8/1 vcU+ fair A-r 376 100.0 7.0 7.0   11.5   2.5 0.5     70.5           7.5 3.0 4.5 0.5         46.8
8v1 5.0 89.2 10.8 yellowish gray 5Y8/1 vcU+ fair A-r 332 100.0 3.5 1.5 2.0 5.5   3.5 0.5 1.0 0.5 83.5 0.5 0.5                       39.8
9v1 1.0 58.7 41.3 yellowish gray 5Y8/1 vfL-fL fair-mod A-a 371 100.0 8.5 8.5   24.0   1.0 0.5 1.5 2.5 29.0 7.0 7.0 7.0   3.0       20.5 2.5 0.5 1.5 0.5 46.1
9v1 4.0 76.6 23.4 yellowish gray 5Y8/1 vfL-fL fair-mod A-a 369 100.0 7.0 7.0   17.5   1.5 0.5 1.5 3.5 43.5 6.5 6.0   0.5 3.5 0.5   0.5 14.5         45.8
10v1 1.0 79.3 20.7 yellowish gray 5Y8/1 vfL-fL fair-mod A-a 380 100.0 2.0 2.0   24.0   1.0   0.5 1.5 42.5         3.5 1.0   1.0 24.0         47.4
10v1 4.0 77.7 22.3 yellowish gray 5Y8/1 vfL-cL very poor A-a 360 99.5 3.5 3.5   27.5   1.5 1.5 0.5 3.0 37.0 1.0 0.5   0.5 1.0 4.0   4.0 19.0 0.5 0.5     44.4
11v1 1.0 92.1 7.9 yellowish gray 5Y8/1 vfL-vfU fair-mod A-a 425 100.0 9.0 9.0   19.5 4.0   5.0 2.0 3.5 28.5         5.0 2.5   2.5 27.0         52.9
11v1 4.0 86.8 13.2 yellowish gray 5Y8/1 vfL-fL fair-mod A-a 385 99.0 9.5 9.5   20.0 2.0 0.5   1.0 2.0 26.5 3.0 3.0     2.0 3.0   3.0 28.5 1.0 1.0     47.5
12v1 1.0 87.3 12.7 yellowish gray 5Y8/1 vfL-fL poor A-a 345 98.5 13.5 13.5   16.5   2.0     4.5 26.5 5.0 5.0     3.5 3.0   3.0 24.0 1.5 1.5     42.0
12v1 4.0 84.1 15.9 yellowish gray 5Y8/1 vfL-fL poor A-a 370 99.5 17.0 17.0   15.5   1.0   0.5 1.5 29.0 1.5 1.5     2.5 5.5 0.5 5.0 25.5         45.9
13v1 0.5 81.0 19.0 l. ol-yell gray 5Y6/1-8/1 vfL-fU poor A-a 377 96.0 16.0 14.5 1.5 16.5 2.5 0.5 2.5 0.5 3.5 21.0 10.0 10.0       0.5   0.5 22.5 4.0 3.0 0.5 0.5 46.9
13v1 2.0 89.0 11.0 l. ol-yell gray 5Y6/1-8/1 vfL-vcL poor A-a 304 98.0 11.5 9.0 2.5 14.5 0.5 5.0     3.0 24.0 20.0 5.0 16.0 2.0 1.0 2.5   2.5 16.0 2.0 1.5 0.5   34.2
AVG                   98.5 13.5     15.9   1.9     2.0 34.4 10.1       2.0 4.7     13.0 1.5        
 
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