Kvenvolden Keith A Blunt David J 1979 (Table 1, page 765) D/L Ratios of Amino Acids in Bone Nuclei of Manganese Nodules from the North Pacific Ocean dataset https://doi.org/10.1594/PANGAEA.888699 Kvenvolden Keith A Blunt David J 1979 Amino Acid Dating of Bone Nuclei in Manganese Nodules from the North Pacific Ocean book chapter In: Bischoff J.L., Piper D.Z. (eds) Marine Geology and Oceanography of the Pacific Manganese Nodule Province, Springer, Boston, MS, ISBN 978-1-4684-3518-4 Marine Sciences 9 https://doi.org/10.1007/978-1-4684-3518-4_24 763-774 The extent of racemization of isoleucine and aspartic acid has been measured on cetacean ear bones from the center of 8 manganese nodules in order to estimate the ages of the nuclei of the nodules and the rates of accretion of ferromanganese oxide layers. Age estimates obtained range from about 0.4 to 6 m.y., and rates of growth from <1 to about 10 mm/m.y. These rates are consistent with those obtained by other nucleus dating methods (K-Ar and fission track) and by layer dating methods (230Th, 231Pd, 10Be and 26Al). Grant John Bruce Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 Alameddin George Chen Kuiying Barton Mark 1992 The NOAA and MMS Marine Minerals Geochemical Database National Geophysical Data Center, NOAA https://doi.org/10.7289/V52Z13FT Warnken Robin R rrw@luna.ngdc.noaa.gov Virden William T Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 1992 The NOAA and MMS Marine Minerals Bibliography National Geophysical Data Center, NOAA https://doi.org/10.7289/V53X84KN -169.05 -148.325 7.83 28.397 -157.2304 16.8474 1972-05-01T00:00:00 1972-06-01T00:00:00 0.0 0.0 not specified NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database https://wiki.pangaea.de/wiki/NOAA-MMS SS72-58DB 7.83 -154.822 Pacific Ocean -4905.0 1972-05-01T00:00:00 SS72/3 SS72/3 Seascope Expedition Seascope Expedition 1972-04-29T00:00:00 1972-04-29 1972-06-01T00:00:00 1972-06-01 Greenslate, J L Greenslate, J L Dredge, bucket DRG_BU SS72-80DB 10.978 -148.325 Pacific Ocean -5121.0 1972-05-01T00:00:00 SS72/3 SS72/3 Seascope Expedition Seascope Expedition 1972-04-29T00:00:00 1972-04-29 1972-06-01T00:00:00 1972-06-01 Greenslate, J L Greenslate, J L Dredge, bucket DRG_BU SS72-87DB 11.97 -150.308 Pacific Ocean -5000.0 1972-05-01T00:00:00 SS72/3 SS72/3 Seascope Expedition Seascope Expedition 1972-04-29T00:00:00 1972-04-29 1972-06-01T00:00:00 1972-06-01 Greenslate, J L Greenslate, J L Dredge, bucket DRG_BU SS72-92DB 25.062 -163.647 Pacific Ocean -4847.0 1972-06-01T00:00:00 SS72/5 SS72/5 Seascope Expedition Seascope Expedition 1972-06-11T00:00:00 1972-06-11 1972-07-10T00:00:00 1972-07-10 Greenslate, J L Greenslate, J L Dredge, bucket DRG_BU SS72-94DB 28.397 -169.05 Pacific Ocean -4393.0 1972-06-01T00:00:00 SS72/5 SS72/5 Seascope Expedition Seascope Expedition 1972-06-11T00:00:00 1972-06-11 1972-07-10T00:00:00 1972-07-10 Greenslate, J L Greenslate, J L Dredge, bucket DRG_BU 79 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ The analysed manganese accumulation was seperated by sonication in 1N HCl and dissolved in 10N HCl. The dried residue was then hydrolysed in 6N HCl for 20 hours at 110°C. Amino acids were finally eluded with 2N NH4OH. From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database. Event label Event Kvenvolden Keith A Event Identification ID Kvenvolden Keith A ID DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Kvenvolden Keith A Depth sed [m] Valine D/L ratio Val D/L ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Val D/L Alanine D/L ratio Ala D/L ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Ala D/L Isoleucine acid D/L ratio Ileu D/L ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Ileu D/L Leucine D/L ratio Leu D/L ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Leu D/L Proline D/L ratio Pro D/L ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Pro D/L Aspartic acid D/L ratio Asp D/L https://en.wikipedia.org/wiki/Aspartic_acid ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Asp D/L Glutamic acid D/L ratio Glu D/L https://en.wikipedia.org/wiki/Glutamic_acid ratio Gas chromatography Chromatographs & spectrometers gas chromatographs http://vocab.nerc.ac.uk/collection/L05/current/LAB02/ Kvenvolden Keith A Glu D/L Thickness Thick mm thickness http://purl.obolibrary.org/obo/PATO_0000915 Length L http://dbpedia.org/resource/Length Kvenvolden Keith A Thick [mm] Substrate type Substrate substrate Kvenvolden Keith A Substrate Deposit type Deposit type Kvenvolden Keith A Deposit type supplement citable author21391 author34446 author48215 author53898 author53899 author53900 author53901 author53916 author568 campaign3387152 campaign3387153 campaign42549 campaign42550 event2796400 event2796416 event2796422 event2796427 event2796429 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 journal10833 license101 method11850 method19 param117466 param123589 param144749 param162989 param48490 param7056 param83757 param85431 param85433 param85435 param85437 pi34446 project4198 ref67195 ref67263 ref95402 term1073131 term1073541 term20898 term2299481 term2663825 term38263 term41044 term41056 term43863 term68027 topotype1