Mineralogy and Origin of Sediments From Drill Holes on the Continental Margin Off Florida, 1965-1969 (NCEI Accession 7100714)


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File Identifier: gov.noaa.nodc:7100714
Metadata Language: English
: utf8
Resource Type: Dataset
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Organisation Name: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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Metadata Standard Name: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version: ISO 19115-2:2009(E)
Data Identification
Abstract: Drill cores obtained during the Joint Oceanographic Institutions' Deep Earth Sampling Program from the continental shelf, the Florida-Hatteras Slope, and the Blake Plateau off northern Florida are composed of sediments ranging in age from Paleocene to post-Miocene. Calcite is the dominant mineral in all the cores; dolomite is almost completely restricted to the shelf and slope cores. Aragonite persists in samples as old as Oligocene, but the magnesian calcite occurs only in post-Miocene samples. In general, only Miocene samples contain non-carbonate minerals in appreciable quantity. Phosphates are limited largely to the Miocene sediments. Here also, the clay minerals palygorskite, sepiolite, and montmorillonite are dominant. These clay minerals and the zeolites clinoptiolite and phillipsite in Miocene and older sediments suggest that volcanic activity was the principal source of non-carbonate deposition during much of the Tertiary. Heavy-mineral analyses suggest a southern Appalachian source for detrital materials. Terrigenous detrital material is scarce in most of the cores except for the surface samples on the continental shelf. The concentration of detrital quartz here probably resulted from reworking and winnowing by regression and transgression of the sea during Pleistocene rather than by increased influx of Terrigenous material. Consolidated chertlike rocks consist of dominantly carbonate minerals in the near-shore holes and dominantly opaline cristobalite inthe Blake Plateau holes. Reflux dolomitization by dense brines produced in evaporative lagoons in the area of the continental shelf and later incursions of fresh ground water from the Florida peninsula may have lithified sediments in the near-shore holes. Only when conditions were favorable for silicification were sediments on the Blake Plateau appreciably consolidated.
Purpose: Basic research
Language: English
Citation:
Title: Mineralogy and Origin of Sediments From Drill Holes on the Continental Margin Off Florida, 1965-1969 (NCEI Accession 7100714)
Date:
Date: 2017-12-08
Date Type: Publication Date
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Voice: 301-713-3277
Fax: 301-713-3300
Delivery Point: Federal Building 151 Patton Avenue
City: Asheville
Administrative Area: NC
Postal Code: 28801-5001
Country: USA
E-Mail Address: NODC.DataOfficer@noaa.gov
Online Resource: https://www.ncei.noaa.gov/
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Role: Resource Provider
Contact Info:
Voice: 703-648-4000
Delivery Point: 12201 Sunrise Valley Drive
City: Reston
Administrative Area: VA
Postal Code: 20192
Country: USA
Online Resource: http://www.usgs.gov
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Contact Info:
City: WOODS HOLE
Administrative Area: MA
Postal Code: 02543
Country: USA
Online Resource: http://www.whoi.edu
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Role: Author
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Delivery Point: 12201 Sunrise Valley Drive
City: Reston
Administrative Area: VA
Postal Code: 20192
Country: USA
Online Resource: http://www.usgs.gov
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Delivery Point: Federal Building 151 Patton Avenue
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Postal Code: 28801-5001
Country: USA
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Online Resource: https://www.ncei.noaa.gov/
Topic Category: Environment and Conservation
Keyword Collection:
Keyword: DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Keyword: DOI/USGS > U.S. Geological Survey, U.S. Department of the Interior
Keyword: WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION
Associated Thesaurus: Global Change Master Directory (GCMD) Data Center Keywords
Associated Thesaurus: NCEI ACCESSION NUMBER
Associated Thesaurus: NODC DATA TYPES THESAURUS
Associated Thesaurus: NODC INSTRUMENT TYPES THESAURUS
Associated Thesaurus: NODC OBSERVATION TYPES THESAURUS
Associated Thesaurus: NODC COLLECTING INSTITUTION NAMES THESAURUS
Associated Thesaurus: NODC SUBMITTING INSTITUTION NAMES THESAURUS
Associated Thesaurus: NODC SEA AREA NAMES THESAURUS
Keyword: oceanography
Associated Thesaurus: WMO_CategoryCode
Keyword: EARTH SCIENCE > OCEANS > MARINE SEDIMENTS
Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY
Associated Thesaurus: Global Change Master Directory (GCMD) Science Keywords
Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Associated Thesaurus: Global Change Master Directory (GCMD) Location Keywords
Spatial Extent:
West Bounding Longitude: -82
East Bounding Longitude: -76
North Bounding Latitude: 32
South Bounding Latitude: 28
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Other Constraints: Cite as: US DOI > US Geological Survey (2017). Mineralogy and Origin of Sediments From Drill Holes on the Continental Margin Off Florida, 1965-1969 (NCEI Accession 7100714). NOAA National Centers for Environmental Information. Unpublished Dataset. [access date]
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Voice: 301-713-3277
Fax: 301-713-3300
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City: Asheville
Administrative Area: NC
Postal Code: 28801-5001
Country: USA
E-Mail Address: NCEI.Info@noaa.gov