publications > water resources investigations > report 00-4251 > appendix i > deering estate park no. 1 core

Deering Estate Park No. 1 Core

Depth (feet below land surface)	Lithologic description
0.0 - 1.5	Oomoldic lime grainstone, white N9; medium grain size, ranges from fine to medium; well rounded; sparry calcite; 10 percent oomoldic and interparticle porosity; moderate hydraulic conductivity.
1.5 - 2.0	No recovery.
2.0 - 2.3	Shell fragment-rich clay lime mudstone, pale-yellowish-brown 10YR 6/2; clay grain size, ranges from clay to medium; 10 percent quartz sand; less than 5 percent interparticle porosity; very low hydraulic conductivity.
2.3 - 4.5	Quartz sand, pale-yellowish-brown, 10YR 6/2 grayish orange 10YR 7/4; fine to medium grain size, ranges from clay to medium; 5 percent clay, 3 percent skeletal fragments, 2 percent organic material (Holocene roots); 5 percent interparticle porosity, low hydraulic conductivity.
4.5 - 5.5	Rubble; oolitic-peloid lime grainstone, very pale orange 10YR 8/2 grayish orange 10YR 7/4; fine to medium grain size, ranges from fine to medium; 10 percent oomoldic porosity, pelmoldic and interparticle porosity; moderate hydraulic conductivity.
5.5 - 8.0	Oolitic-peloid lime grainstone, very pale orange 10YR 8/2 grayish orange 10YR 7/4; fine to medium grain size, ranges from fine to medium; 20 percent oomoldic and pelmoldic porosity; moderate hydraulic conductivity.
8.0 - 10.0	No recovery.
10.0 - 12.0	Oolitic-peloid lime grainstone, very pale orange 10YR 8/2; fine to medium grain size, ranges from fine to medium; mollusks and gastropods; 20 percent oomoldic and pelmoldic porosity; high hydraulic conductivity.
12.0 - 15.0	No recovery.
15.0 - 15.3	Bryozoan framestone, very pale orange 10YR 8/2; pebble grain size; skeletal fragments; 15 percent interparticle porosity; moderate hydraulic conductivity.
15.3 - 15.5	Laminate calcrete (exposure surface); moderate yellowish brown 10YR 5/4; clay grain size; micrite; less than 5 percent porosity; very low hydraulic conductivity.
15.5 - 16.7	Skeletal lime floatstone with a matrix of quartz sand-rich, peneroplid, peloid, skeletal fragment lime grainstone, very pale orange 10YR 8/2; fine to coarse grain size, ranges from fine to coarse; 15 percent interparticle and vuggy porosity; moderate hydraulic conductivity.
16.7 - 20.0	No recovery.
20.0 - 20.5	Skeletal-fragment lime grainstone, very pale orange 10YR 8/2; fine to medium grain size, ranges from very fine to coarse; 30 percent very fine to fine quartz sand; 25 percent vuggy porosity, riddled with solution channels; very high hydraulic conductivity.
20.5 - 21.8	No recovery.
21.8 - 22.2	Skeletal fragment, quartz-sand-rich lime grainstone, very pale orange 10YR 8/2; fine to medium grain size, ranges from very fine to coarse; 5 percent very fine to medium quartz sand; 20 percent vuggy porosity; high hydraulic conductivity.
22.2 - 23.5	Monastrea lime framestone, very pale orange 10YR 8/2; cobble grain size; 25 percent intraparticle porosity; very high hydraulic conductivity.
23.5 - 25.0	No recovery.
25.0 - 25.5	Monastrea lime framestone, very pale orange 10YR 8/2; cobble grain size; 25 percent intraparticle porosity; very high hydraulic conductivity.
25.5 - 26.5	No recovery.
26.5 - 27.0	Rubble of limestone.
27.0 - 27.5	Quartz sand-rich, skeletal-fragment lime packstone, very pale orange 10YR 8/2; clay and fine to medium grain size; ranges from clay to pebble; 10 percent very fine to fine quartz sand; 25 percent vuggy porosity, riddled with solution channels; very high hydraulic conductivity.
27.5 - 28.2	Skeletal-fragment lime floatstone with matrix of mollusk, miliolid, quartz-sand-rich lime packstone and wackestone; very light gray N8; clay and fine to medium grain size, ranges from clay to pebble; 10 percent very fine to fine quartz sand; 10 percent vuggy porosity; low hydraulic conductivity.
28.2 - 31.0	No recovery.
31.0 - 32.7	Lime-mud-rich quartz sandstone; very light gray N8; clay and fine to medium grain size, ranges from clay to granule; 60 percent very fine to medium quartz sand; 15 percent lime mud; 25 percent mollusks and skeletal fragments; 20 percent vuggy porosity, riddled with solution channels; very high hydraulic conductivity.
32.7 - 35.0	Lime-mud-rich queers sandstone, very light gray N8; clay and very fine to medium grain size, ranges from clay to granule; 60 percent very fine to medium quartz sand, 15 percent lime mud, 25 percent mollusks and skeletal fragments; 15 percent vuggy porosity; minor solution channels; high hydraulic conductivity.
35.0 - 35.4	Mollusk lime floatstone with a matrix of skeletal fragment, quartz-rich lime packstone, very pale orange 10YR 8/2; clay and very fine to medium grain size, ranges from clay to pebble; 30 percent very fine to medium quartz sand, mollusks, gastropods and dasyclad algae; 15 percent moldic and root-mold porosity; moderate hydraulic conductivity; abundant millimeter- wide root molds suggest an exposure surface at 35 feet.
35.4 - 35.6	Skeletal fragment floatstone with a matrix of skeletal-fragment-rich quartz sand, very light gray N8; clay and very fine to medium grain size, ranges from very fine to pebble; very fine to medium quartz sand; 20 percent vuggy porosity; high hydraulic conductivity.
35.6 - 37.5	Skeletal lime floatstone with matrix of skeletal, quartz-sand-rich lime packstone, very pale orange 10YR 8/2; clay and coarse to pebble grain size, ranges from clay to pebble; 10 percent very fine to medium quartz sand, gastropods, mollusks and peneroplids; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
37.5 - 37.8	Branching Porites lime rudstone with matrix of skeletal lime grainstone; very pale orange 10YR 8/2; fine to medium and pebble to cobble grain size, ranges from clay to cobble; 10 percent very fine to medium quartz sand; 20 percent interparticle porosity; moderate hydraulic conductivity.
37.8 - 38.8	Skeletal-fragment lime packstone, very pale orange 10YR 8/2; clay and coarse to pebble grain size, ranges from clay to pebble; 15 percent very fine to medium quartz sand; mollusks, peneroplids and miliolids; 20 percent moldic and vuggy porosity; moderate hydraulic conductivity.
38.8 - 39.2	Skeletal fragment floatstone with matrix of skeletal-fragment quartz sandstone; very light gray N8; clay and very fine to medium grain size, ranges from clay to pebble;
39.2 - 39.8	Gastropod lime floatstone with matrix of gastropod and mollusk lime packstone, very pale orange 10YR 8/2; clay and very fine to fine and pebble grain size, ranges from clay to pebble; 10 percent very fine to fine quartz sand, gastropods and mollusks; 25 percent moldic porosity; moderate hydraulic conductivity; probable lacustrine environment.
39.8 - 39.9	Peneroplid-rich floatstone with matrix of quartz sandstone, very pale orange 10YR 8/2; clay and very fine to medium and pebble grain size; ranges from clay to pebble; 80 percent very fine to medium quartz sand, peneroplids; 20 percent vuggy and interparticle porosity; high hydraulic conductivity.
39.9 - 40.0	Laminated calcrete, pale-yellowish-brown 10YR 6/2; clay grain size, ranges from clay to very fine; 10 percent silt to very fine quartz grains; 5 percent porosity; very low hydraulic conductivity; exposure surface at 39.9 feet.
40.0 - 41.0	Skeletal lime floatstone with matrix of skeletal-fragment lime grainstone; very pale orange 10YR 8/2; medium to granule grain size, ranges from very fine to pebble; peneroplids, mollusks and gastropods; 25 percent interparticle and vuggy porosity; high hydraulic conductivity.
41.0 - 45.0	Skeletal floatstone with matrix of quartz sandstone, very pale orange 10YR 8/2; very fine to medium grain size, ranges from very fine to pebble; mollusks and dasyclad algae; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
45.0 - 49.0	No recovery.
49.0 - 49.5	Mollusk floatstone with matrix of skeletal fragment quartz sandstone, very light gray N8; fine to medium grain size, ranges from silt to pebble; 70 percent very fine to fine quartz sand, mollusks, benthic foraminifers and branching Porites; 20 percent moldic and vuggy porosity; high hydraulic conductivity.
49.5 - 50.5	Skeletal, quartz-sand-rich lime grainstone, very pale orange 10YR 8/2; very fine to medium grain size, ranges from silt to pebble; 30 percent very fine to medium sand, mollusks and gastropods; 15 percent moldic porosity; moderate hydraulic conductivity.
50.5 - 55.0	No recovery.
55.0 - 57.5	Skeletal fragment floatstone with matrix of skeletal-fragment-rich quartz sandstone, very light gray N8; very fine to fine grain size, ranges from very fine to pebble; 50 percent very fine to fine quartz grains, mollusks and gastropods; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
57.5 - 58.7	Skeletal floatstone with matrix of skeletal-fragment-rich quartz sandstone, very light gray N8; very fine to fine grain size, ranges from very fine to pebble; 60 percent very fine to fine quartz grains, mollusks, dasyclad algae, benthic foraminifers and bryozoans; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
58.7 - 61.0	No recovery.
61.0 - 61.7	Rubble of skeletal floatstone with matrix of skeletal-fragment-rich quartz sandstone; very light gray N8; very fine to fine grain size, ranges from very fine to pebble; 60 percent very fine to fine quartz sand, mollusks, dasyclad algae, benthic foraminifers and bryozoans; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
61.7 - 67.0	Skeletal-fragment lime floatstone with matrix of quartz-sand-rich skeletal lime packstone, very pale orange 10YR 8/2; very fine to fine grain size, ranges from very fine to pebble; 10 to 20 percent very fine to fine quartz sand, mollusks and gastropods; 15 percent moldic porosity, minor vugs; moderate hydraulic conductivity.
67.0 - 68.0	Rubble of skeletal-fragment-rich quartz sandstone, very light gray N8; very fine to fine grain size, ranges from very fine to pebble; 15 percent vuggy porosity; moderate hydraulic conductivity.
68.0 - 70.8	Mollusk skeletal lime floatstone with matrix of skeletal-fragment lime grainstone, very pale orange 10YR 8/2; very fine to medium grain size, ranges from very fine to pebble; 10 percent very fine to fine quartz sand, mollusks, gastropods, branching Porites, bryozoans and sand dollars; 20 percent moldic and vuggy porosity, high hydraulic conductivity.
70.8 - 70.8	Laminate calcrete, grayish orange 10YR 7/4; clay to silt grain size, ranges from clay to silt; less than 5 percent porosity; very low hydraulic conductivity; 1-millimeter-thick calcrete, exposure surface at 70.8 feet.
70.8 - 73.0	Mollusk, skeletal-fragment lime floatstone with matrix of skeletal-fragment lime grainstone, very pale orange 10YR 8/2 and very light gray N8; very fine to medium grain size, ranges from very fine to pebble; 10 percent very fine to fine quartz sand, mollusks and gastropods; 20 percent moldic and vuggy porosity; high hydraulic conductivity.
73.0 - 75.0	No recovery.
75.0 - 75.5	Mollusk floatstone with matrix of skeletal-fragment-rich quartz sandstone, very light gray N8; very fine to fine grain size, ranges from very fine to pebble; 70 percent very fine to fine quartz sand; mollusks and gastropods; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
75.5 - 84.0	No recovery.
84.0 - 85.0	Skeletal-fragment lime packstone and mollusk, skeletal-fragment lime floatstone with matrix of skeletal lime packstone; very pale orange 10YR 8/2; clay to pebble grain size, ranges from clay to pebble; 20 percent very fine to fine quartz sand, red algae, mollusks and gastropods; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity; root molds, possible exposure surface at 84 feet.
85.0 - 87.0	No recovery.
87.0 - 88.0	Skeletal-fragment lime floatstone with matrix of skeletal-fragment lime grainstone, very pale orange 10YR 8/2; fine to medium grain size, ranges from very fine to pebble; 10 percent very fine quartz sand, red algae; 15 percent interparticle and moldic porosity; moderate hydraulic conductivity.
88.0 - 90.0	Skeletal-fragment lime floatstone with matrix of skeletal fragment, quartz-sand-rich lime packstone, very pale orange 10YR 8/2; clay to pebble grain size, ranges from clay to pebble; 10 percent very fine quartz sand, mollusks and gastropods; 20 percent moldic and vuggy porosity; high hydraulic conductivity.
90.0 - 91.3	Mollusk, skeletal-fragment lime rudstone with matrix of skeletal fragment, quartz-sand-rich lime packstone, very pale orange 10YR 8/2; clay to pebble grain size, ranges from clay to pebble; 10 percent very fine to very coarse quartz sand, mollusks and gastropodes; 20 percent moldic and vuggy porosity; high hydraulic conductivity.
91.3 - 93.8	No recovery.
93.8 - 95.5	Mollusk, skeletal fragment lime floatstone with matrix of quartz-sand-rich, skeletal-fragment lime packstone and wackestone, very pale orange 10YR 8/2; clay to pebble grain size, ranges from clay to pebble; 20 percent very fine to fine quartz sand; 15 percent moldic and vuggy porosity; moderate hydraulic conductivity.
95.5 - 98.8	Quartz-sand-rich skeletal lime packstone and wackestone, very pale orange 10YR 8/2; clay to granule grain size, ranges from clay to pebble; 20 percent very fine to coarse quartz sand; 10 percent moldic porosity; low hydraulic conductivity.
98.8 - 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)