Foraminiferal Mg/Ca data from IODP sediment core U1446

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Metadata:

Identification_Information
Data_Quality_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Julie N. Richey
Originator: Steven C. Clemens
Originator: Kaustubh Thirumalai
Originator: Caitlin E. Reynolds
Publication_Date: 20210610
Title: Foraminiferal Mg/Ca data from IODP sediment core U1446
Geospatial_Data_Presentation_Form: Tabular digital data
Larger_Work_Citation:

Citation_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9033XM8

Publication_Information:

Publication_Place: St. Petersburg, Florida
Publisher:

U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center

Online_Linkage: https://doi.org/10.5066/P9033XM8

Description:

Abstract:

In 2019, the magnesium-to-calcium (Mg/Ca) ratios were measured in the tests of planktic foraminiferal species, Globigerinoides ruber (white variety), in a subset of samples from Integrated Ocean Drilling Program (IODP) sediment core U1146 from the Bay of Bengal drilled November 2014 to January 2015. For further information regarding data collection and/or processing methods, refer to the associated journal article (Clemens and others, 2021).

Purpose:

The samples analyzed in this study were part of a larger set of samples that were used to reconstruct South Asian summer-monsoon precipitation and runoff into the Bay of Bengal over the past 0.9 million years.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 201411
Ending_Date: 201501

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 85.73
East_Bounding_Coordinate: 85.73
North_Bounding_Coordinate: 19.08
South_Bounding_Coordinate: 19.08

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:c60a38d7-b538-475f-a729-7f777b73c8dc

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: environment

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: protists
Theme_Keyword: micropaleontology

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: foraminifera

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Bay of Bengal

Access_Constraints: None.
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data.

Data_Set_Credit:

U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center

Native_Data_Set_Environment:

Environment as of Metadata Creation: macOS Mojave Version 10.14.6

Cross_Reference:

Citation_Information:

Originator: Daniel P. Schrag
Publication_Date: 199904
Title:

Rapid analysis of high-precision Sr/Ca ratios in corals and other marine carbonates

Series_Information:

Series_Name: Paleoceanography
Issue_Identification: Volume 14, Issue 2

Other_Citation_Details: Pages 97-102
Online_Linkage: https://doi.org/10.1029/1998PA900025

Cross_Reference:

Citation_Information:

Originator: Steven C. Clemens
Originator: Masanobu Yamamoto
Originator: Kaustubh Thirumalai
Originator: Liviu Giosan
Originator: Julie N. Richey
Originator: Katrina Nilsson-Kerr
Originator: Yair Rosenthal
Originator: Pallavi Anand
Originator: Sarah McGrath
Publication_Date: 20210604
Title:

Remote and local drivers of Pleistocene South Asian summer monsoon precipitation: A test for future predictions

Series_Information:

Series_Name: Science Advances
Issue_Identification: Volume 7, Issue 23

Online_Linkage: https://doi.org/10.1126/sciadv.abg3848

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted.

Logical_Consistency_Report: No formal logical accuracy tests were conducted.
Completeness_Report:

Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A formal accuracy assessment of the vertical positional information in the dataset has either not been conducted or is not applicable.

Lineage:

Process_Step:

Process_Description:

Using Integrated Ocean Drilling Program (IODP) sediment core U1146 from the Bay of Bengal, samples from three time intervals (18-70 thousand years before present [ka BP], 143-204 ka BP, and 415-673 ka BP) were analyzed at U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). Typical samples contained 6 to 50 Gloigerinoides ruber sensu-stricto individuals (250-355 micrometer [µm] fraction). Samples analyzed at the USGS laboratory were subjected only to oxidative cleaning without the added reductive cleaning step. Samples were dissolved in diluted nitric acid (HNO3) to achieve constant [Ca] concentration in order to minimize matrix effects. At USGS SPCMSC, samples were analyzed on a PerkinElmer 7300 DV inductively coupled optical emission spectrometer (ICP-OES). Mg/Ca was corrected font instrumental drift using the internal gravimetric Standards (IGS) method devised by Schrag (1999). Reproducibility of Mg/Ca measurements, as determined by repeated analysis of synthetic calcium carbonate (CaCO3) standards was better than 1.8% (1s). Contaminant ratios (aluminum-to-calcium [Al/Ca] and iron-to-calcium [Fe/Ca]) were monitored and samples with Al/Ca >300µmol/mol and Fe/Ca >10 µmol/mol were discarded if their Mg/Ca ratios were significantly different than the samples next to them.

Process_Date: 2019

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Foram_Mg_Ca.csv, Foram_Mg_Ca.xlsx
Entity_Type_Definition:

Comma Separated Values (CSV) and Microsoft Excel (XLSX) file containing core samples and associated measured Mg/Ca (mmol/mol) collected from the Bay of Bengal.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: Sample ID
Attribute_Definition: Name of each core sample taken.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Refers to the core and sample depth in centimeters (cm).

Attribute:

Attribute_Label: Mg/Ca (mmol/mol)
Attribute_Definition: Measured Mg/Ca values in mmol/mol.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.24
Range_Domain_Maximum: 5.78

Overview_Description:

Entity_and_Attribute_Overview:

The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the dataset.

Entity_and_Attribute_Detail_Citation:

The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

Contact_Person: Julie Richey

Contact_Position: Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: (727) 502-8123
Contact_Electronic_Mail_Address: jrichey@usgs.gov

Resource_Description: Foram_Mg_Ca.csv, Foram_Mg_Ca.xlsx
Distribution_Liability:

Distributor assumes no liability for misuse of data. This publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: CSV, XLSX

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9033XM8/data/Foram_Mg_Ca.zip

Fees: None. No fees are applicable for obtaining the dataset.

Metadata_Reference_Information:

Metadata_Date: 20210922
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Julie Richey

Contact_Position: Research Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8123
Contact_Electronic_Mail_Address: jrichey@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/Foram_Mg_Ca_metadata.html>