Catalog - Data.gov

Found 55 datasets matching "shells".

#1 Federal
Strewn conch shells noted in 2008 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands
- Organization: Department of the Interior
- Updated: 2023-10-27T00:00:00Z
This part of the release provides an updated georeferenced catalog of strewn conch shells pertaining to extreme waves on Anegada, a low Caribbean island perched south of the Puerto Rico Trench....
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Search relevance: 99.94 | Views last month: 2
#2 Federal
Data release for Oxygen isotopes in terrestrial gastropod shells track Quaternary climate change in the American Southwest
- Organization: Department of the Interior
- Updated: 2021-05-21T00:00:00Z
Recent studies have shown the oxygen isotopic composition (δ18O) of modern terrestrial gastropod shells is determined largely by the δ18O of precipitation. This implies that fossil shells could be...
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Search relevance: 97.85 | Views last month: 0
#3 Federal
Strewn shells of a large marine bivalve noted 2008 to 2017 on Anegada, British Virgin Islands
- Organization: Department of the Interior
- Updated: 2023-10-27T00:00:00Z
This part of the data release lists 18 localities where the shells of the tiger lucine Codakia orbicularis, a large marine bivalve, have been found on Anegada. Typically the shells were...
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Search relevance: 95.88 | Views last month: 0
#4 Federal
The Stable Carbon Isotope Dataset of Individual Foraminifer (Orbulina universa) Shells Measured by Secondary Ion Mass Spectrometry and Gas-Source Mass Spectrometry
- Organization: Department of the Interior
- Updated: 2023-11-27T00:00:00Z
This data release contains data associated with the journal article, “Comparison of δ13C Analyses on Individual Foraminifer (Orbulina universa) Shells by Secondary Ion Mass Spectrometry and...
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Search relevance: 90.64 | Views last month: 1
#5 Federal
Data release for Late glacial-Younger Dryas climate in interior Alaska as inferred from the isotope values of land snail shells
- Organization: Department of the Interior
- Updated: 2023-10-18T00:00:00Z
The isotopic values of fossil snail shells can be important archives of past climate. Here we present the first carbon (δ13C) and oxygen (δ18O) isotope values of radiocarbon-dated and...
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Search relevance: 80.53 | Views last month: 0
#6 Federal
Fished conch shells in modern heaps noted in 2012 to 2018 that were largely reshaped by storm waves offshore Anegada, British Virgin Islands
- Organization: Department of the Interior
- Updated: 2023-10-27T00:00:00Z
This part of the data release catalogs 40 offshore conch heaps mapped on airphotos and satellite images. Conch shells harvested around Anegada since the start of European colonization, which began...
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Search relevance: 76.46 | Views last month: 0
#7 Federal
Radiocarbon ages measured 2011 to 2021 on corals, shells, and plant fragments pertaining to sea floods of the past 1,000 years on Anegada, British Virgin Islands
- Organization: Department of the Interior
- Updated: 2023-10-27T00:00:00Z
This part of the data release provides an updated georeferenced list of radiocarbon ages pertaining to evidence for a catastrophic precolonial sea flood on Anegada, a low Caribbean island perched...
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Search relevance: 65.07 | Views last month: 0
#8 Federal
Data release for Oxygen isotopes of land snail shells in high latitude regions
- Organization: Department of the Interior
- Updated: 2022-01-27T00:00:00Z
The present study investigates the environmental significance of the oxygen isotopic composition of several modern land snail species collected along two north-to-south transects in Alaska and...
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Search relevance: 54.87 | Views last month: 0
#9 Federal
Onshore conch heaps noted in 2012 to 2018 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands
- Organization: Department of the Interior
- Updated: 2023-10-27T00:00:00Z
This part of the release provides an georeferenced list on the most conspicuous of the onshore heaps of harvested conch shells on Anegada, a low Caribbean island perched south of the Puerto Rico...
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Search relevance: 45.99 | Views last month: 0
#10 Federal
Limacina helicina shell dissolution due to ocean acidification in the California Current Ecosystem from 2011-08-11 to 2013-08-29 (NCEI Accession 0155173)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-07-28T00:00:00.000+00:00
Pteropod shell dissolution was determined on shells collected from 16 stations for the 2011 cruise and 20 stations during the 2013 cruise. The samples were stored in 90% buffered ethanol. Between...
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Search relevance: 44.71 | Views last month: 0
#11 Federal
NOAA/WDS Paleoclimatology - Gulf of Maine age corrected radiocarbon data measured in Arctica islandica shells from 1685-1986
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-09-23T00:00:00.000+00:00
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI...
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Search relevance: 44.56 | Views last month: 0
#12 Federal
NOAA/WDS Paleoclimatology - Core top study of stable isotopes of carbon and oxygen from fossil planktonic foraminifers shells on the Rio Grande Rise
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-02-20T00:00:00.000+00:00
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI...
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Search relevance: 42.20 | Views last month: 0
#13 Federal
Laboratory culture experiments with Operculina ammonoides from the Gulf of Eilat, Israel under variable salinities, temperatures, and calcium concentrations from 2015-04-29 to 2017-05-08 (NCEI Accession 0210601)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-06-04T00:00:00.000+00:00
Two laboratory culture experiments with the calcitic foraminifer Operculina ammonoides collected from the Gulf of Eilat, Israel. The first experiment was under variable temperatures (22, 25, 28...
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Search relevance: 38.92 | Views last month: 0
#14 Federal
Bivalve Shell Growth Indices, Chukchi Sea, Alaska, 1867-2015
- Organization: Department of the Interior
- Updated: 2025-01-29T00:00:00Z
This dataset contains the growth index from annual growth bands in the shells of two bivalve clam species (Astarte borealis and Liocyma fluctuosa) captured in the Chukchi Sea, Alaska. The growth...
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Search relevance: 38.77 | Views last month: 0
#15 Federal
Gravity cores from San Pablo Bay and Carquinez Strait, San Francisco Bay, California
- Organization: Department of the Interior
- Updated: 2020-10-19T00:00:00Z
This data release contains information on gravity cores that were collected by the U.S. Geological Survey in the area of San Pablo Bay and Carquinez Strait, California in 1990, 1991, and 2000. Ten...
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Search relevance: 38.12 | Views last month: 0
#16 Federal
Molecular and morphological data to resolve species boundaries in the critically imperiled freshwater mussel species, Fusconaia mitchelli
- Organization: Department of the Interior
- Updated: 2020-08-30T00:00:00Z
We generated multilocus DNA sequence data and traditional morphometric measurements to evaluate species boundaries in Fusconaia mitchelli. We sequenced three loci: the protein-coding mitochondrial...
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Search relevance: 36.30 | Views last month: 0
#17 Federal
usSEABED EXTracted data for the entire U.S. Atlantic Coast (ATL_EXT)
- Organization: Department of the Interior
- Updated: 2021-11-11T00:00:00Z
This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED. This data layer...
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Search relevance: 35.90 | Views last month: 0
#18 Federal
usSEABED EXTracted data for the Louisiana Region (LA_EXT)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED. This data layer...
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Search relevance: 35.44 | Views last month: 0
#19 Federal
usSEABED EXTracted data for the entire U.S. Gulf of Mexico and Caribbean (GMX_EXT, Puerto Rico and U.S. Virgin Islands)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED. This data layer...
- xml
- xml
Search relevance: 35.38 | Views last month: 0
#20 Federal
Quarterly breakdown of the Firearms and Ammunition Excise Tax (FAET) collections which are broken out between handguns, long guns, and ammunition (calculated per returns)
- Organization: Department of the Treasury
- Updated: 2025-02-11
Quarterly breakdown of the Firearms and Ammunition Excise Tax (FAET) collections which are broken out between handguns, long guns, and ammunition (calculated per returns)
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Search relevance: 35.06 | Views last month: 0

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