PANGAEA_875764 Annotated record of the detailed examination of Mn deposits from DSDP Leg 92 (Holes 597, 597C, 598, 600, 600B, 600C, 601, 601B, 602B) Leinen, Margaret W; Rea, David K Annotated record of the detailed examination of Mn deposits from DSDP Leg 92 (Holes 597, 597C, 598, 600, 600B, 600C, 601, 601B, 602B) 1986 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.875764 Earth Science Event label Identification Sample code/label DEPTH, sediment/rock Position Deposit type Quantity of deposit Size Substrate type Sediment type Comment Description geoscientificInformation 92-597 92-597C 92-598 92-600 92-600B 92-600C 92-601 92-601B 92-602B Drilling/drill rig Leg92 Visual description Glomar Challenger 1983-03-02 1983-03-26 Complete -19.0047 -18.8063 -129.7705 -116.8395 0.0 m (DEPTH, sediment/rock) 58.92 m (DEPTH, sediment/rock) DSDP Deep Sea Drilling Project NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 150 data points text/tab-separated-values Stephen, Ralph A; Romine, Karen; Pearce, Julian A; Owen, Robert M; Nishitani, Tadashi; Newmark, Robin L; Moos, Daniel; Lyle, Mitchell W; Knüttel, Stephen; Kastner, Miriam; Hobart, Michael A; Goldsborough, Robert; Goldfarb, Marjorie; Goldberg, David; Gieskes, Joris M; Erzinger, Jörg; Boulègue, Jacques; Becker, Keir; Anderson, Roger N; Leinen, Margaret W; Rea, David K (1986): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XCII, 617 pp, https://doi.org/10.2973/dsdp.proc.92.1986 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 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

The realization that ridgecrest hydrothermal activity is more common along the faster spreading centers of the Pacific Ocean than along the slowly spreading Mid- Atlantic Ridge has given rise to a generally accepted correlation between the intensity of this activity and seafloor spreading rate. Knowledge of seafloor hydrothermal activity is essential to our understanding of the oceanic cycling of elements, and an understanding of the history of hydrothermal activity is important to ocean paleochemistry and many other aspects of the history of the Earth and the oceans. Leg 92 was undertaken primarily to determine the nature and history of basalt-seawater (or hydrogeology) interactions at and on the flanks of the East Pacific Rise (EPR). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.875764"! ** 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.

https://doi.org/10.2973/dsdp.proc.92.1986 Initial Reports of the Deep Sea Drilling Project https://doi.org/10.7289/V52Z13FT The NOAA and MMS Marine Minerals Geochemical Database https://doi.org/10.7289/V53X84KN The NOAA and MMS Marine Minerals Bibliography https://wiki.pangaea.de/wiki/NOAA-MMS NOAA-MMS https://www.deepseadrilling.org/ DSDP https://www-odp.tamu.edu:443/glomar.html Glomar Challenger DIF 9.4 2026-06-15