Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A
We measured and analyzed near-ultraviolet/visible/near-infrared spectral data from core samples recovered from Ocean Drilling Program Sites 1165 (Wild Drift) and 1167 (Prydz Channel Trough Mouth Fan) using our laboratory-grade spectrophotometer to help determine temporal mineralogical changes downho...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2003
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.780477 https://doi.org/10.1594/PANGAEA.780477 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.780477 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.780477 2023-05-15T18:03:41+02:00 Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A Damuth, John E Balsam, William L MEDIAN LATITUDE: -65.053138 * MEDIAN LONGITUDE: 68.907321 * SOUTH-BOUND LATITUDE: -66.400180 * WEST-BOUND LONGITUDE: 67.218733 * NORTH-BOUND LATITUDE: -64.379583 * EAST-BOUND LONGITUDE: 72.284180 * DATE/TIME START: 2000-01-28T00:00:00 * DATE/TIME END: 2000-02-28T08:25:00 2003-05-04 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.780477 https://doi.org/10.1594/PANGAEA.780477 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.780477 https://doi.org/10.1594/PANGAEA.780477 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Damuth, John E; Balsam, William L (2003): Data report: Spectral data from Sites 1165 and 1167 including the HiRISC section from Hole 1165B. In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-49, https://doi.org/10.2973/odp.proc.sr.188.003.2003 188-1165 188-1165B 188-1167A COMPCORE Composite Core DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.780477 https://doi.org/10.2973/odp.proc.sr.188.003.2003 2023-01-20T07:32:32Z We measured and analyzed near-ultraviolet/visible/near-infrared spectral data from core samples recovered from Ocean Drilling Program Sites 1165 (Wild Drift) and 1167 (Prydz Channel Trough Mouth Fan) using our laboratory-grade spectrophotometer to help determine temporal mineralogical changes downhole. These measurements included closely spaced (~10 cm) samples for the section from 0 to 54.17 meters below seafloor (mbsf) in Hole 1165B, which is the Pliocene-Pleistocene age interval being studied in detail by the High-Resolution Integrated Stratigraphy Committee (HiRISC). We also determined calcium carbonate content for all samples in this HiRISC interval. The Pleistocene and uppermost Pliocene sediments (0-10 mbsf) show wide carbonate fluctuations ranging from 0 to 37 wt%; however, below 10 mbsf, the carbonate content is generally zero. To examine the major components that contribute to spectral variability in the holes, the first-derivative values for all samples from Sites 1165 and 1167 were assembled into a single matrix and the matrix was then factor analyzed after being subject to a varimax rotation. For Sites 1165 and 1167, factoring first-derivative values from 255 to 745 nm produced the most easily interpretable results, with five factors that explain ~92.5% of the total variance in the data set. Factor 1 incorporates both goethite and chlorite, meaning that scores for this factor will be high where these two minerals covary. Factor 2 is interpreted as organic matter. Factor 3 appears to be a combination of clay minerals, possibly montmorillonite and illite. Factor 4 is interpreted as the mineral maghemite, a polymorph of hematite. Factor 5 is the mineral hematite. Dataset Prydz Bay PANGAEA - Data Publisher for Earth & Environmental Science Prydz Bay Indian Prydz Channel ENVELOPE(73.000,73.000,-67.000,-67.000) ENVELOPE(67.218733,72.284180,-64.379583,-66.400180) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
188-1165 188-1165B 188-1167A COMPCORE Composite Core DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay |
spellingShingle |
188-1165 188-1165B 188-1167A COMPCORE Composite Core DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Damuth, John E Balsam, William L Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
topic_facet |
188-1165 188-1165B 188-1167A COMPCORE Composite Core DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay |
description |
We measured and analyzed near-ultraviolet/visible/near-infrared spectral data from core samples recovered from Ocean Drilling Program Sites 1165 (Wild Drift) and 1167 (Prydz Channel Trough Mouth Fan) using our laboratory-grade spectrophotometer to help determine temporal mineralogical changes downhole. These measurements included closely spaced (~10 cm) samples for the section from 0 to 54.17 meters below seafloor (mbsf) in Hole 1165B, which is the Pliocene-Pleistocene age interval being studied in detail by the High-Resolution Integrated Stratigraphy Committee (HiRISC). We also determined calcium carbonate content for all samples in this HiRISC interval. The Pleistocene and uppermost Pliocene sediments (0-10 mbsf) show wide carbonate fluctuations ranging from 0 to 37 wt%; however, below 10 mbsf, the carbonate content is generally zero. To examine the major components that contribute to spectral variability in the holes, the first-derivative values for all samples from Sites 1165 and 1167 were assembled into a single matrix and the matrix was then factor analyzed after being subject to a varimax rotation. For Sites 1165 and 1167, factoring first-derivative values from 255 to 745 nm produced the most easily interpretable results, with five factors that explain ~92.5% of the total variance in the data set. Factor 1 incorporates both goethite and chlorite, meaning that scores for this factor will be high where these two minerals covary. Factor 2 is interpreted as organic matter. Factor 3 appears to be a combination of clay minerals, possibly montmorillonite and illite. Factor 4 is interpreted as the mineral maghemite, a polymorph of hematite. Factor 5 is the mineral hematite. |
format |
Dataset |
author |
Damuth, John E Balsam, William L |
author_facet |
Damuth, John E Balsam, William L |
author_sort |
Damuth, John E |
title |
Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
title_short |
Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
title_full |
Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
title_fullStr |
Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
title_full_unstemmed |
Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A |
title_sort |
calcium carbonate content, brightness and color reflectance of odp site 188-165 and hole 188-1167a |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.780477 https://doi.org/10.1594/PANGAEA.780477 |
op_coverage |
MEDIAN LATITUDE: -65.053138 * MEDIAN LONGITUDE: 68.907321 * SOUTH-BOUND LATITUDE: -66.400180 * WEST-BOUND LONGITUDE: 67.218733 * NORTH-BOUND LATITUDE: -64.379583 * EAST-BOUND LONGITUDE: 72.284180 * DATE/TIME START: 2000-01-28T00:00:00 * DATE/TIME END: 2000-02-28T08:25:00 |
long_lat |
ENVELOPE(73.000,73.000,-67.000,-67.000) ENVELOPE(67.218733,72.284180,-64.379583,-66.400180) |
geographic |
Prydz Bay Indian Prydz Channel |
geographic_facet |
Prydz Bay Indian Prydz Channel |
genre |
Prydz Bay |
genre_facet |
Prydz Bay |
op_source |
Supplement to: Damuth, John E; Balsam, William L (2003): Data report: Spectral data from Sites 1165 and 1167 including the HiRISC section from Hole 1165B. In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-49, https://doi.org/10.2973/odp.proc.sr.188.003.2003 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.780477 https://doi.org/10.1594/PANGAEA.780477 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.780477 https://doi.org/10.2973/odp.proc.sr.188.003.2003 |
_version_ |
1766174675943030784 |