PANGAEA_869632 Annotated record of the detailed examination of Mn deposits from DSDP Leg 32 (Holes 303, 303A, 304, 306, 307, 310, 310A, 311, 313) Larson, Roger L; Moberly, Ralph; Bukry, David; Foreman, H P; Gardner, James V; Keene, John B; Lancelot, Yves; Luterbacher, Hanspeter; Marshall, M C; Matter, A Annotated record of the detailed examination of Mn deposits from DSDP Leg 32 (Holes 303, 303A, 304, 306, 307, 310, 310A, 311, 313) 1975 PANGAEA Dataset Supplement to: Larson, Roger L; Moberly, Ralph; Bukry, David; Foreman, H P; Gardner, James V; Keene, John B; Lancelot, Yves; Luterbacher, Hanspeter; Marshall, M C; Matter, A (1975): Initial Reports of the Deep Sea Drilling Project. U. S. Government Printing Office, XXXII, 980 pp, https://doi.org/10.2973/dsdp.proc.32.1975 https://doi.pangaea.de/10.1594/PANGAEA.869632 Earth Science Event label DEPTH, sediment/rock Sample code/label Identification Position Deposit type Quantity of deposit Size Substrate type Sediment type Comment Description geoscientificInformation 32-303 32-303A 32-304 32-306 32-307 32-310 32-310A 32-311 32-313 Drilling/drill rig Leg32 Visual description Glomar Challenger 1973-08-18 1973-10-03 Complete 20.1753 40.8083 154.4512 -170.9525 0.6 m (DEPTH, sediment/rock) 325.1 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

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Bremen Bremen 28359 Germany online 216 data points text/tab-separated-values 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 northwestern Pacific Ocean is the largest expanse of old oceanic lithosphere, and so the principal theme of Leg 32 set by the Pacific Advisory Panel was the late Mesozoic history of the Pacific Ocean. The main scientific goals originally set for the leg were to: 1) Determine the development of the very deep sea floor of the western Pacific, including the nature of its basement rocks and the age, lithology, and fossil content of the sedimentary rocks overlying acoustic basement. 2) Establish standard mid-Mesozoic to Recent paleontological-biostratigraphic reference sections for the (present-day) northwest Pacific. 3) Determine the paleolatitude for a specific period of volcanicity on Koko Guyot of the Emperor Seamount Chain. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.869632"! ** 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.32.1975 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