# Gulf of California Foraminifera and Wood 14C Data
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#                World Data Service for Paleoclimatology, Boulder 
#                                  and 
#                     NOAA Paleoclimatology Program 
#             National Centers for Environmental Information (NCEI)
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# Template Version 3.0
# Encoding: UTF-8
# NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. 
# If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. 
#
# Online_Resource: https://www.ncdc.noaa.gov/paleo/study/25650
#       Description: NOAA Landing Page
# Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/rafter2018/rafter2018-lpaz-21pg.txt
#       Description: URL of this template file
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# Original_Source_URL: (URL to original source of data, if applicable)
#       Description:
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# Description/Documentation lines begin with #
# Data lines have no #
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# Data_Type: marine sediment microfossil (foraminifera) and wood 14C content (radiocarbon)
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# Dataset_DOI: (placeholder for eventual minting by NOAA)
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# Parameter_Keywords: carbon isotopes, foraminifera, wood
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# Contribution_Date
#	Date:  2018-11-23
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# File_Last_Modified_Date
#	Date:  2018-11-23
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# Title
#	Study_Name: Gulf of California Foraminifera and Wood 14C Data
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# Investigators
#	Investigators:  Rafter, Patrick A.; Herguera, Juan-Carlos; Southon, John R.
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# Description_Notes_and_Keywords
#	Description: 
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# Publication 
#	Authors: Rafter, Patrick A., Juan-Carlos Herguera, and John R. Southon
#	Published_Date_or_Year:  2018
#	Published_Title: Extreme lowering of deglacial seawater radiocarbon recorded by both epifaunal and infaunal benthic foraminifera in a wood-dated sediment core
#	Journal_Name: Climate of the Past
#	Volume: in review
#	Edition: 
#	Issue: 
#	Pages: 
#	Report_Number: 
#	DOI: 10.5194/cp-2018-75
#	Online_Resource: 
#	Full_Citation: 
#	Abstract: For over a decade, oceanographers have debated the interpretation and reliability of sediment microfossil records indicating extremely low seawater radiocarbon (14C) during the last deglaciation-observations that suggest a major disruption in marine carbon cycling coincident with rising atmospheric CO2 concentrations. Possible flaws in these records include poor age model controls, utilization of mixed, infaunal foraminifera species possibly influenced by changing porewater chemistry, and bioturbation. We have addressed these concerns using a glacial-interglacial record of epifaunal benthic foraminifera 14C on an ideal sedimentary age model (wood calibrated to atmosphere 14C). Our results affirm – with important caveats – the fidelity of these microfossil archives and confirm previous observations of highly depleted seawater 14C at intermediate depths in the deglacial northeast Pacific.
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# Funding_Agency 
#	Funding_Agency_Name: 
#	Grant: 
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# Site_Information 
#	Site_Name: LPAZ-21P
#	Location: Eastern Pacific Ocean
#	Country:  
#	Northernmost_Latitude: 22.98
# 	Southernmost_Latitude:  22.98
# 	Easternmost_Longitude:  -109.4667
# 	Westernmost_Longitude:  -109.4667
# 	Elevation:  -624
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# Data_Collection   
#	Collection_Name:  LPAZ-21PG 14C Rafter2018
#	Earliest_Year:  8470
#	Most_Recent_Year:  1690
#	Time_Unit:  14C yr BP
#	Core_Length: 
#	Notes: wood 14C age, constrained by atmospheric 14C via IntCal13
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# Chronology_Information
#	Chronology: 
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# Variables 
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# Data variables follow are preceded by "##" in columns one and two.
# *** MORE DETAILED INSTRUCTIONS are available at www1.ncdc.noaa.gov/pub/data/paleo/templates/Variable_naming_guide.pdf
# variables format:  shortname	what, material, error, units, seasonality, data_type, detail, method, data_format, additional_information) 
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## labcode	sample identification,,, ,,paleoceanography,,,N,code used to identify AMS measurement
## depth_top	depth at sample end,,,centimeter,,paleoceanography,,,N,the youngest end of the sample
## depth_bot	depth at sample start, , , centimeter,,paleoceanography,,,N,the oldest end of the sample
## mat_dated	notes,,, ,,paleoceanography,,,N,material dated for 14C age
## 14C_age	age,,,radiocarbon year before present,,paleoceanography , ,,N,radiocarbon age
## 14C_age_err	age, ,one standard deviation,radiocarbon year, ,paleoceanography , ,,N,radiocarbon age
## notes	notes,,,,,,,,C,
#
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# Data:
# Missing_Values: NA
labcode	depth_top	depth_bot	mat_dated	14C_age	14C_age_err	notes
163270	2.0	4.0	Bolivina spp.	1785	15	
163270	4.0	3.0	Bolivina spp.	1785	15	
163271	67.0	69.0	Bolivina spp.	4875	25	
163271	69.0	68.0	Bolivina spp.	4875	25	
163272	138.0	140.0	Bolivina spp.	8470	70	
163272	140.0	139.0	Bolivina spp.	8470	70	
181563	2.0	4.0	U. peregrina 	1690	20