publications > water resources investigations > report 00-4251 > appendix i > high hope farms core

High Hope Farms Core

Depth (feet below land surface)	Lithologic description
0.0 - 0.5	Mud and Holocene roots, pale-yellowish-brown 10YR 6/2; clay to very fine grain size; less than 5 percent microporosity; low hydraulic conductivity.
0.5 - 2.5	Highly weathered chalky limestone, very pale orange 10YR 8/2; clay to silt grain size; cerithid or serpulid tubes; 20 percent microporosity; moderate hydraulic conductivity.
2.5 - 3.5	No recovery.
3.5 - 7.5	Rubble of chalky oolitic, oomoldic lime grainstone, very pale orange 10YR 8/2; clay to medium grain size; ranges from clay to granule; gastropods and mollusks; 20 percent microporosity and moldic porosity; moderate hydraulic conductivity.
7.5 - 7.6	Rubble of laminated calcrete, light brown 5YR 5/6; clay to very fine grain size, ranges from clay to very fine; 15 percent porosity; low hydraulic conductivity; exposure surface.
7.6 - 8.8	Rubble of oomoldic, pelmoldic lime grainstone, light brown 5YR 5/6(?); 25 percent oomoldic porosity, pelmoldic and vuggy porosity; high hydraulic conductivity.
8.8 - 13.0	No recovery.
13.0 - 15.0	Rubble of skeletal fragment, mollusk, gastropod lime floatstone with matrix of oomoldic, pelmoldic lime grainstone; very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 30 percent oomoldic, pelmoldic and vuggy porosity; high hydraulic conductivity.
15.0 - 15.7	Skeletal fragment, mollusk, gastropod lime floatstone with matrix of oomoldic, pelmoldic lime grainstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 30 percent oomoldic, pelmoldic and vuggy porosity; high hydraulic conductivity.
15.7 - 18.0	No recovery.
18.0 - 18.7	Rubble of skeletal fragment lime floatstone with matrix of lime mudstone, mottled very pale orange 10YR 8/2 to grayish orange 10YR 7/4; clay grain size, ranges from clay to very fine; 20 percent root-mold, skeletal-fragment mold and vuggy porosity; high hydraulic conductivity; laminated calcrete lines root molds, probable exposure surface at 18 feet.
18.7 - 20.0	Moldic, skeletal-fragment lime floatstone with matrix of quartz-sand-rich lime mudstone, mottled very pale orange 10YR 8/2 to grayish orange 10YR 7/4; clay grain size; ranges from clay to granule; 5 percent very fine to fine quartz sand, mollusks; 20 percent root-mold and skeletal-fragment moldic and vuggy porosity; high hydraulic conductivity; supratidal or tidal mudstones.
20.0 - 23.0	No recovery.
23.0 - 27.0	Skeletal fragment, mollusk, benthic-foraminifer lime floatstone with matrix of quartz-sand-rich, mollusk lime wackestone and packstone, mottled very pale orange 10YR 8/2 to grayish orange 10YR 7/4; clay and very fine to fine; ranges from clay to pebble; 30 percent very fine to fine quartz sand; 20 percent moldic and vuggy porosity; high hydraulic conductivity; equant limpid calcite lines interclast pores and vugs.
27.0 - 30.0	Breccia containing clasts of lime-mud-rich quartz sandstone and quartz-sand-rich lime mudstone, mottled very pale orange 10YR 8/2, grayish orange 10YR 7/4 to dark-yellowish-orange 10YR 6/6; clay and very fine to fine, ranges from clay to medium; 40 percent very fine to fine quartz sand; 20 percent interclast and vuggy porosity; very high hydraulic conductivity; equant limpid calcite lines interclast pores and vugs.
30.0 - 30.7	Rubble of quartz-sand-rich lime mudstone, mottled very pale orange 10YR 8/2, grayish orange 10YR 7/4 to dark-yellowish-orange 10YR 6/6; clay and very fine to fine, ranges from clay to medium; 10 percent very fine to fine quartz sand; 20 percent interclast and vuggy porosity; very high hydraulic conductivity.
30.7 - 35.8	No recovery.
35.8 - 36.2	Rubble of limestone; probably cave.
36.2 - 37.0	Gastropod, mollusk lime floatstone with matrix of quartz-sand-rich lime wackestone and packstone light gray N7; clay, very fine to fine and pebble grain size, ranges from clay to pebble; 20 to 40 percent quartz grains, dasyclad algae; 15 percent moldic porosity; moderate hydraulic conductivity.
37.0 - 38.0	Gastropod, mollusk lime floatstone with matrix of quartz-sand-rich lime wackestone and packstone very pale orange 10YR 8/2 to very light gray N8; clay, very fine to fine and pebble grain size, ranges from clay to pebble; 20 to 40 percent quartz grains, benthic foraminifers; 15 percent moldic porosity and minor vugs; moderate hydraulic conductivity.
38.0 - 40.5	No recovery.
40.5 - 41.0	Rubble of quartz-sand-rich, skeletal fragment lime grainstone, very pale orange 10YR 8/2; very fine to fine and pebble grain size; ranges from very fine to pebble; 30 percent very fine to fine quartz sand; 20 percent moldic porosity; moderate hydraulic conductivity.
41.0 - 42.8	Mollusk lime rudstone and floatstone with matrix of quartz-sand-rich, skeletal lime grainstone, very pale orange 10YR 8/2; very fine to fine and pebble grain size, ranges from very fine to pebble; 20 to 40 percent quartz grains, mollusks, branching Porites and gastropods; 20 percent moldic porosity and minor vugs; moderate hydraulic conductivity.
42.8 - 49.5	Mollusk lime rudstone and floatstone with matrix of quartz-sand-rich, skeletal-fragment lime grainstone and skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to fine and pebble grain size, ranges from very fine to cobble; 20 to 60 percent very fine to fine quartz sand, mollusks, gastropods and benthic foraminifers; 20 percent moldic and vuggy porosity; moderate hydraulic conductivity; abundant calcrete line (dark-yellowish-brown 10yr 6/6) root molds between 42.8 and 47.0 feet, probable exposure surface at 42.8 feet.
49.5 - 50.5	No recovery.
50.5 - 51.3	Skeletal fragment lime grainstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 10 percent vuggy and interparticle porosity; moderate hydraulic conductivity.
51.3 - 56.0	No recovery.
56.0 - 57.0	Quartz-sand-rich, skeletal-fragment lime grainstone and skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to medium grain size, ranges from very fine to pebble; 40 to 60 percent very fine to fine quartz grains, peneroplids; 15 percent vuggy, moldic and interparticle porosity; moderate hydraulic conductivity.
57.0 - 58.0	Moldic, skeletal-fragment lime grainstone with matrix of quartz-sand-rich, skeletal-fragment lime grainstone and skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to medium and pebble grain size, ranges from very fine to pebble; 40 to 60 percent very fine to fine quartz grains, peneroplids; 15 percent vuggy, moldic and interparticle porosity; moderate hydraulic conductivity.
58.0 - 60.5	No recovery.
60.5 - 61.5	Skeletal-fragment-rich quartz sandstone and quartz-sand-rich skeletal-fragment lime grainstone, very pale orange 10YR 8/2; very fine to fine and pebble grain size, ranges from very fine to pebble; 40 to 70 percent quartz sand, peneroplids and mollusks; 20 percent vuggy, moldic and interparticle porosity; moderate hydraulic conductivity.
61.5 - 62.5	Moldic mollusk lime floatstone with matrix of skeletal-fragment-rich quartz sandstone and quartz-sand-rich skeletal-fragment lime grainstone, very pale orange 10YR 8/2; very fine to fine and pebble grain size, ranges from very fine to pebble; 40 to 70 percent quartz sand, peneroplids and mollusks one oyster at base; 20 percent vuggy, moldic and interparticle porosity; moderate hydraulic conductivity.
62.5 - 67.0	No recovery.
67.0 - 67.2	Skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to small pebble; 70 percent very fine to fine quartz sand, gastropods; 15 percent vuggy, moldic and interparticle porosity; moderate hydraulic conductivity.
67.2 - 70.0	No recovery.
70.0 - 70.4	Oyster lime floatstone with matrix of skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 70 percent very fine to fine quartz sand; 20 percent vuggy and interparticle porosity; moderate hydraulic conductivity.
70.4 - 72.0	Friable quartz sand, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 90 percent very fine to fine quartz sand, oysters and skeletal fragments; 20 percent interparticle porosity; moderate hydraulic conductivity.
72.0 - 72.7	No recovery.
72.7 - 73.5	Quartz-sand-rich, skeletal-fragment lime packstone; clay to coarse grain size, ranges from clay to pebble; 20 percent very fine to coarse quartz sand, oysters, corals, mollusks and echinoids; 15 percent vuggy porosity; moderate hydraulic conductivity.
73.5 - 74.0	No recovery.
74.0 - 74.5	Rubble of mollusk lime floatstone with matrix of skeletal-fragment-rich quartz sandstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 60 percent very fine to fine quartz sand; 15 percent vuggy and interparticle porosity; moderate hydraulic conductivity.
74.5 - 76.0	Mollusk lime floatstone with matrix of skeletal fragment, quartz-sand-rich lime packstone and minor grainstone, very pale orange 10YR 8/2; very fine to coarse grain size; 10 to 20 percent very fine to coarse quartz sand, bryozoans, mollusks, red algae; 10 percent vuggy and moldic porosity; low hydraulic conductivity.
76.0 - 76.5	Rubble of mollusk lime floatstone with a matrix of skeletal-fragment quartz sandstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 60 percent very fine to fine quartz sand, oysters; 15 percent interparticle and moldic porosity; moderate hydraulic conductivity.
76.5 - 79.0	Mollusk lime floatstone with matrix of skeletal fragment, quartz-sand-rich lime packstone, very pale orange 10YR 8/2; clay to pebble grain size; 10 percent very fine to coarse quartz sand, mollusks and gastropods; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
79.0 - 79.5	Rubble of mollusk lime floatstone with matrix of skeletal fragment quartz sandstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 70 percent very fine to fine quartz sand; 15 percent vuggy and moldic porosity; moderate hydraulic conductivity.
79.5 - 81.0	No recovery.
81.0 - 82.5	Partly rubble skeletal fragment, mollusk lime floatstone with quartz-sand-rich lime packstone matrix; very fine to coarse grain size, ranges from clay to pebble; 20 percent very fine to coarse quartz sand, red algae; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
82.5 - 85.0	No recovery.
85.0 - 85.8	Rubble of mollusk, skeletal fragment lime floatstone with quartz-sand-rich lime packstone matrix; clay to medium grain size, ranges from clay to pebble; 40 percent very fine to medium quartz sand; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
85.8 - 90.0	No recovery.
90.0 - 91.0	Rubble of mollusk, skeletal fragment lime floatstone with quartz-sand-rich lime packstone matrix; clay to medium grain size, ranges from clay to pebble; 45 percent very fine to medium quartz sand; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
91.0 - 101.0	No recovery.

U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 20 January, 2005 @ 01:23 PM (KP)