publications > water resources investigations > report 00-4251 > appendix i > deering estate park no. 2 core

Deering Estate Park No. 2 Core

Depth (feet below land surface)	Lithologic description
0.0 - 1.0	No recovery.
1.0 - 8.0	Rubble of oolitic lime grainstone, very pale orange 10YR 8/2; mainly medium grain size, ranges from fine to pebble; mollusks; 30 percent oomoldic and probable solution-channel porosity; high hydraulic conductivity.
8.0 - 9.0	Rubble of oolitic lime grainstone, very pale orange 10YR 8/2; mainly medium grain size, ranges from fine to pebble; mollusks; 30 percent oomoldic and solution-channel porosity; very high hydraulic conductivity.
9.0 - 13.0	No recovery.
13.0 - 15.0	Oolitic lime grainstone, rubble in part, very pale orange 10YR 8/2; mainly medium grain size, ranges from fine to pebble; mollusks and gastropods; 30 percent oomoldic and solution-channel porosity; very high hydraulic conductivity.
15.0 - 16.0	No recovery.
16.0 - 17.0	Oolitic lime grainstone, rubble in part, very pale orange 10YR 8/2; mainly medium grain size, ranges from fine to pebble; mollusks and gastropods; 30 percent oomoldic and solution-channel porosity; very high hydraulic conductivity.
17.0 - 21.0	No recovery.
21.0 - 21.5	Rubble of oolitic lime grainstone, very pale orange 10YR 8/2; mainly medium grain size, ranges from fine to pebble; mollusks and gastropods; 30 percent oomoldic and probable solution-channel porosity; very high hydraulic conductivity.
21.5 - 23.0	Calcretized mollusk, peneroplid lime floatstone with skeletal, quartz-sand-rich lime wackestone matrix, very pale orange 10YR 8/2, pale-yellowish-orange 10YR 8/6, grayish orange 10YR 7/4, pale-yellowish-brown 10YR 6/2, light-brown 5YR 6/4; mainly clay to medium grain size, ranges from clay to pebble; 10 to 30 percent accessory grains, very fine to medium quartz sand; 10 percent moldic an vuggy porosity; low hydraulic conductivity; subaerial exposure zone, depositional sequence boundary at 21.5 feet.
23.0 - 25.5	No recovery.
25.5 - 28.0	Skeletal fragment lime wackestone and mudstone, very pale orange 10YR 8/2, pale-yellowish-orange 10YR 8/6, grayish orange 10YR 7/4, pale-yellowish-brown 10YR 6/2, light brown 5YR 6/4; mainly clay to fine grain size, ranges from clay to pebble; 10 percent very fine to medium quartz sand; 25 percent moldic, vuggy and solution-channel porosity; high hydraulic conductivity; possible reef rock, root molds filled with quartz sand.
28.0 - 29.0	Monastrea lime framestone, very pale orange 10YR 8/2, pale-yellowish-orange 10YR 8/6, grayish orange 10YR 7/4, pale-yellowish-brown 10YR 6/2; mainly clay to fine and cobble grain size, ranges from clay to cobble; Monastrea coral heads and possible sponge; 25 percent moldic, vuggy and solution-channel porosity; high hydraulic conductivity.
29.0 - 30. 8	No recovery.
30.8 - 31.1	Skeletal fragment lime wackestone; very pale orange 10YR 8/2, light gray N7, pale-yellowish-brown 10YR 6/2; mainly clay to very fine, ranges from clay to coarse; 15 percent vuggy and solution-channel porosity; moderate hydraulic conductivity.
31.1 - 34.4	Skeletal lime grainstone, packstone and wackestone, very pale orange 10YR 8/2, light gray N7; mollusks, two thin Monastrea corals and gastropods; 5 to 25 percent very fine to medium quartz sand in lime mud matrix of packstone and wackestone; 20 percent vuggy and solution-channel porosity; high hydraulic conductivity.
34.4 - 35.8	No recovery.
35.8 - 37.3	Quartz-sand-rich, skeletal lime mudstone and wackestone; very pale orange 10YR 8/2, very light gray N8; mainly clay to fine, ranges from clay to coarse; 40 percent very fine to fine quartz sand, mollusks; 20 percent vuggy and minor solution-channel porosity; high hydraulic conductivity; solution channels filled with quartz sand, trace root molds lined with laminated calcrete, possible exposure surface and depositional sequence boundary between 34.4 and 35.8 feet.
37.3 - 40.5	No recovery.
40.5 - 44.0	Skeletal quartz sandstone and skeletal, quartz-sand-rich lime packstone, very pale orange 10YR 8/2, very light gray N8; mainly clay to coarse, ranges from clay to pebble; peneroplids and mollusks, quartz sand; 20 percent vuggy, moldic and solution channel porosity; high hydraulic conductivity; matrix of sandstone composed of lime mud, quartz sand fills some solution channels, trace root molds, lined with laminated calcrete.
44.0 - 45.5	Branching-coral lime floatstone and rudstone with quartz-sand-rich, skeletal lime packstone and grainstone matrix, very pale orange 10YR 8/2, very light gray N8; mainly clay to pebble grain size, ranges from clay to pebble; mollusks, gastropods, miliolid and peneroplids, 5 to 45 percent fine to coarse quartz sand; 10 percent moldic, vuggy and interparticle porosity; low hydraulic conductivity; root molds.
45.5 - 48.0	Skeletal lime floatstone and rudstone with quartz-sand-rich lime packstone and grainstone matrix, very pale orange 10YR 8/2, very light gray N8; mainly very fine to coarse grain size, ranges from very fine to coarse; mollusks, miliolids, peneroplids, branching Porites and gastropods, 10 to 40 percent fine to coarse quartz sand; 20 percent interparticle, vuggy, moldic and very minor solution-channel porosity; moderate hydraulic conductivity; root molds.
48.0 - 48.5	Gastropod lime floatstone with lime mudstone matrix, pale-yellowish-brown 10YR 6/2; mainly clay to silt and pebble, ranges from clay to pebble; 10 percent moldic porosity; low hydraulic conductivity; lacustrine environment.
48.5 - 48.8	Skeletal lime floatstone with quartz-sand-rich skeletal lime packstone matrix, very pale orange 10YR 8/2; mainly clay to fine to coarse quartz sand, mollusks and branching corals; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
48.8 - 49.2	Skeletal, quartz-sand-rich lime wackestone and packstone; very pale orange 10YR 8/2; mainly clay to fine grain size, ranges from clay to fine; 20 percent very fine to coarse quartz sand, peneroplids; 10 percent moldic porosity; low hydraulic conductivity.
49.2 - 50.0	Skeletal quartz-sand-rich.
50.0 - 51.0	Skeletal quartz sandstone, light gray N7 to very light gray N8; mainly clay and very fine to coarse grain size; ranges from clay to pebble, quartz grains are very fine to coarse; mollusks and peneroplids; 20 percent interparticle, vuggy and solution-channel porosity; moderate hydraulic conductivity; lime mud matrix.
51.0 - 54.4	No recovery.
54.4 - 57.5	Skeletal quartz sandstone and quartz-sand-rich lime packstone, very pale orange 10YR 8/2, light gray N7; mainly clay and very fine to medium grain size, ranges from clay to pebble, quartz grains are very fine to medium; peneroplids, mollusks and gastropods, 40 to 70 percent quartz sand; 15 percent vuggy and interparticle porosity; low hydraulic conductivity.
57.5 - 60.5	No recovery.
60.5 - 62.5	Skeletal lime rudstone with quartz-sand-rich lime packstone matrix and quartz-sand-rich, skeletal lime wackestone, very pale orange 10YR 8/2, light gray N7; mainly clay to fine grain size, ranges from clay to pebble; peneroplids, mollusks, gastropods and dasyclad algae; 40 percent very fine to medium quartz sand; 20 percent moldic, interparticle and solution-channel porosity; moderate hydraulic conductivity; subaerial exposure surface (depositional sequence boundary) at 60.7 feet, below surface are root molds lined with laminated calcrete.
62.5 - 70.5	No recovery.
70.5 - 71.0	Skeletal, molluscan lime floatstone with quartz-sand-rich, skeletal lime grainstone, very pale orange 10YR 8/2 and light gray N7; mainly very fine to coarse grain size, ranges from fine to pebble; 10 to 30 percent very fine to fine quartz sand, mollusks and gastropods; 15 percent moldic porosity; low hydraulic conductivity.
71.0 - 74.5	Skeletal, molluscan lime floatstone with quartz-sand-rich, skeletal lime packstone, very pale orange 10YR 8/2 and light gray N7; mainly clay to coarse grain size, ranges from clay to pebble; 10 to 30 percent very fine to fine quartz sand, mollusks, gastropods and one branching coral; 15 percent moldic porosity; low hydraulic conductivity.
74.5 - 75.5	Skeletal, molluscan lime floatstone with quartz-sand-rich, skeletal lime packstone, very pale orange 10YR 8/2 and light gray N7; mainly clay to coarse grain size, ranges from clay to pebble; 10 to 30 percent very fine to fine quartz sand, mollusks and gastropods; 15 percent moldic porosity; low hydraulic conductivity.
75.5 - 80.5	No recovery.
80.5 - 81.5	Skeletal molluscan, quartz-sand-rich lime grainstone, light gray N7; very fine to medium grain size, ranges from silt to medium; 20 percent very fine to fine quartz sand, mollusks, gastropods and red algae; 15 percent moldic and vuggy porosity; low hydraulic conductivity.
81.5 - 84.8	Skeletal, molluscan lime floatstone with sleekly, quartz-sand-rich lime grainstone, very pale orange 10YR 8/2; very fine to pebble, ranges from silt to pebble; 10 to 30 percent very fine to fine quartz sand, mollusks, gastropods and red algae; 15 percent moldic and vuggy porosity; low hydraulic conductivity.
84.8 - 85.5	Skeletal, molluscan lime floatstone with skeletal, quartz-sand-rich lime grainstone; very pale orange 10YR 8/2; very fine to pebble, ranges from silt to pebble; 10 to 30 percent very fine to fine quartz sand, mollusks, gastropods and red algae; 20 percent moldic and vuggy porosity; moderate hydraulic conductivity.
85.5 - 90.5	No recovery.
90.5 - 99.5	Skeletal, mollusk lime rudstone with skeletal, quartz-sand-rich lime packstone matrix, light gray N7, very pale orange 10YR 8/2; mainly clay to pebble grain size; ranges from clay to pebble; 5 to 25 percent very fine to very coarse quartz sand with uncommon very coarse quartz sand, mollusks, gastropods, red algae, sand dollars, echinoid spines; 20 percent moldic porosity; low hydraulic conductivity; 2-inch-thick laminations at 91.5 and 92 feet, composed of gastropod, mollusk lime rudstone with quartz-sand-rich skeletal wackestone and packstone matrix, very pale orange 10YR 8/2 and pale-yellowish-brown 10YR 6/2, possibly deposited in a lacustrine environment.
99.5 - 101.5	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)