Metadata: 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: 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 Series_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