# Aminostratigraphy database #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/1002685 # # Archive: Repository # #-------------------- # Title # Study_Name: Aminostratigraphy database #-------------------- # Investigators # Investigators: Wehmiller, J. #-------------------- # Description_Notes_and_Keywords # Description: A database of amino acid racemization data from projects in North Caroloina, and arctic continental shelf areas. It is searchable by mapping application. # Amino acids can have two different configurations, "D" or "L". Living organisms generally have amino acids in the "L" configuration, but when the organism dies, the ratio of D/L moves slowly toward equilibrium, a process called racemization. Measuring the ratio of D/L in a geologic sample containing preserved amino acids can therefore allow calculations of the age of the sample. # KEYWORDS: geologic, coastal # DISCIPLINE KEYWORDS: Geochronolgy, geochemistry, marine geoscience, molecular biology, sedimentology # CONTENT KEYWORDS: Subsurface, Data. This resource description was produced with support from the NSF project entitled "EarthCube RCN: C4P: Collaboration and # Cyberinfrastructure for Paleogeosciences," (NSF ICER-1340301) under the direction of Kerstin A. Lehnert, Mark Uhen, John W. Williams, Christopher J. Jenkins #------------------- # # Data: Data can be found at: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/aar/