Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Krishnaswami, Seth; Mangini, Augusto; Thomas, J H; Sharma, P; Cochran, J Kirk; Turekian, Karl K; Parker, P D (1982): Analysis of 10Be and Th isotopes in manganese nodules. PANGAEA, https://doi.org/10.1594/PANGAEA.871720, Supplement to: Krishnaswami, S et al. (1982): 10Be and Th isotopes in manganese nodules and adjacent sediments: Nodule growth histories and nuclide behavior. Earth and Planetary Science Letters, 59(2), 217-234, https://doi.org/10.1016/0012-821X(82)90127-3

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
The usefulness of cosmogenic beryllium-10 (half life = 2.5 Ma) for studying the rates of accumulation of ferromanganese nodules is reported based on its measured depth distribution in the top 20 mm of these deposits. Accumulation rates have been obtained in the range of 1 to 4 mm/Ma, which are in good agreement with rates determined using the 230Th method on the same nodules. The use of 10Be offers promise in extending the dating to the outer few cm of the nodules. This contrasts with conventional methods using 230Th and 231Pa isotopes which, due to their comparatively short half lives, are limited to a few mm at the surface of the nodules. Detailed studies of 10Be in the manganese deposits coupled with other trace element analyses should prove valuable in understanding the processes of formation of these deposits and the chronology of events recorded by them.
Source data set:
Grant, John Bruce; Moore, Carla J; 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
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Coverage:
Median Latitude: -13.794240 * Median Longitude: 162.074898 * South-bound Latitude: -26.800000 * West-bound Longitude: 108.316667 * North-bound Latitude: 9.038300 * East-bound Longitude: -150.583300
Date/Time Start: 1962-07-28T00:00:00 * Date/Time End: 1975-10-29T00:00:00
Event(s):
ARRH-TF * Latitude: -13.866700 * Longitude: -150.583300 * Elevation: -3623.0 m
RP8OC75-47-16 (DOMES-A47-16) * Latitude: 9.038300 * Longitude: -151.190000 * Date/Time: 1975-10-29T00:00:00 * Elevation: -4948.0 m * Location: Pacific Ocean * Campaign: RP8OC75 * Basis: Oceanographer * Method/Device: Box corer (BC)
VITYAZ5186 (Vit 5186) * Latitude: -26.800000 * Longitude: 108.316667 * Date/Time: 1962-07-28T00:00:00 * Elevation: -5258.0 m * Location: Indian Ocean * Campaign: Vityaz-35 * Basis: Vityaz (ex-Mars) * Method/Device: Dredge (DRG)
Size:
2 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text (use the following character encoding: )