/* DATA DESCRIPTION: Citation: Heirtzler, James R (1976): Observation of manganese deposits in the Cayman Trough, Caribbean Sea by the ALVIN submersible in 1976 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.871021, Supplement to: Heirtzler, JR (1976): Submersible studies of the Cayman Trough. In: Geodynamics Project U.S. Progress Report - 1976. National Academy of Sciences, Washington D.C., USA; https://catalog.hathitrust.org/Record/007158946, 11-17, https://store.pangaea.de/Projects/NOAA-MMS/Heirtzler_1976_Cayman.pdf Abstract: Scientists from the Woods Hole Oceanographic Institution, the U.S. Navy, the State University of New York at Albany, Wesleyan University, Oregon State University, Dalhousie University, and the Scripps Institution of Oceanography participated in the Cayman Trough expedition durieng 15 ALVIN dives in January and February 1976. The survey focused on a spreading center is a 150-km section of the plate boundary running across the floor of the Cayman Trough, where two tectonic plates are actually moving apart. Source: 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: Near-vertical basaltic face of a scarp in the Cayman Trough - photo taken from submersible ALVIN in 1976 (URI: https://store.pangaea.de/Projects/NOAA-MMS/Fig2-1_Heirtzler_1976_Cayman.jpg) 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 Project(s): NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS) (URI: https://wiki.pangaea.de/wiki/NOAA-MMS) Coverage: MEDIAN LATITUDE: 18.331385 * MEDIAN LONGITUDE: -81.634846 * SOUTH-BOUND LATITUDE: 17.913000 * WEST-BOUND LONGITUDE: -81.807000 * NORTH-BOUND LATITUDE: 19.148000 * EAST-BOUND LONGITUDE: -81.217000 DATE/TIME START: 1976-01-28T00:00:00 * DATE/TIME END: 1976-02-21T00:00:10 MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m Event(s): ALV-611 (AL61100) * LATITUDE: 17.913000 * LONGITUDE: -81.692000 * DATE/TIME: 1976-01-28T00:00:00 * ELEVATION: -3639.0 m * CAMPAIGN: ALV611 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-612 (AL61200) * LATITUDE: 17.957000 * LONGITUDE: -81.603000 * DATE/TIME: 1976-01-31T00:00:01 * ELEVATION: -3067.0 m * CAMPAIGN: ALV612 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-613 (AL61300) * LATITUDE: 17.965000 * LONGITUDE: -81.612000 * DATE/TIME: 1976-02-01T00:00:02 * ELEVATION: -3652.0 m * CAMPAIGN: ALV613 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-615 (AL61500) * LATITUDE: 17.990000 * LONGITUDE: -81.597000 * DATE/TIME: 1976-02-03T00:00:02 * ELEVATION: -3075.0 m * CAMPAIGN: ALV615 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-616 (AL61600) * LATITUDE: 17.967000 * LONGITUDE: -81.613000 * DATE/TIME: 1976-02-04T00:00:02 * ELEVATION: -3662.0 m * CAMPAIGN: ALV616 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-617 (AL61700) * LATITUDE: 19.148000 * LONGITUDE: -81.217000 * DATE/TIME: 1976-02-10T00:00:03 * ELEVATION: -3084.0 m * CAMPAIGN: ALV617 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-619 (AL61900) * LATITUDE: 19.093000 * LONGITUDE: -81.332000 * DATE/TIME: 1976-02-12T00:00:04 * ELEVATION: -3657.0 m * CAMPAIGN: ALV619 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-620 (AL62000) * LATITUDE: 18.377000 * LONGITUDE: -81.730000 * DATE/TIME: 1976-02-14T00:00:05 * ELEVATION: -3663.0 m * CAMPAIGN: ALV620 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-621 (AL62100) * LATITUDE: 18.380000 * LONGITUDE: -81.752000 * DATE/TIME: 1976-02-16T00:00:06 * ELEVATION: -3187.0 m * CAMPAIGN: ALV621 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-622 (AL62200) * LATITUDE: 18.375000 * LONGITUDE: -81.768000 * DATE/TIME: 1976-02-18T00:00:07 * ELEVATION: -2866.0 m * CAMPAIGN: ALV622 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-623 (AL62300) * LATITUDE: 18.410000 * LONGITUDE: -81.787000 * DATE/TIME: 1976-02-19T00:00:08 * ELEVATION: -3658.0 m * CAMPAIGN: ALV623 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-624 (AL62400) * LATITUDE: 18.353000 * LONGITUDE: -81.743000 * DATE/TIME: 1976-02-20T00:00:09 * ELEVATION: -3657.0 m * CAMPAIGN: ALV624 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) ALV-625 (AL62500) * LATITUDE: 18.380000 * LONGITUDE: -81.807000 * DATE/TIME: 1976-02-21T00:00:10 * ELEVATION: -2228.0 m * CAMPAIGN: ALV625 * BASIS: Alvin * METHOD/DEVICE: Grab (GRAB) Comment: 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. Parameter(s): Event label (Event) * PI: Heirtzler, James R Latitude of event (Latitude) * PI: Heirtzler, James R Longitude of event (Longitude) * PI: Heirtzler, James R Elevation of event [m] (Elevation) * PI: Heirtzler, James R Identification (ID) * PI: Heirtzler, James R DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Heirtzler, James R Position (Position) * PI: Heirtzler, James R * METHOD/DEVICE: Visual description Deposit type (Deposit type) * PI: Heirtzler, James R Quantity of deposit (Quantity) * PI: Heirtzler, James R Substrate type (Substrate) * PI: Heirtzler, James R Sediment type (Sediment) * PI: Heirtzler, James R Comment (Comment) * PI: Heirtzler, James R Description (Description) * PI: Heirtzler, James R License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 94 data points */ Event Latitude Longitude Elevation [m] ID Depth sed [m] Position Deposit type Quantity Substrate Sediment Comment Description ALV-611 17.9130 -81.6920 -3639 ALV-611-1 0 Surface Mn coating Several Rock; igneous, volcanics Hard ground Plutonic igneous and volcanic rocks with Mn coating ALV-612 17.9570 -81.6030 -3067 ALV-612-1 0 Surface Mn coating Several Rock; igneous, metamorphic Hard ground Plutonic igneous and metamorphic rocks with Mn coating ALV-613 17.9650 -81.6120 -3652 ALV-613-1 0 Surface Mn coating Several Rock; igneous, metamorphic Hard ground Plutonic igneous and metamorphic rocks with Mn coating ALV-615 17.9900 -81.5970 -3075 ALV-615-1 0 Surface Mn coating Several Rock; igneous, metamorphic Hard ground Plutonic igneous and metamorphic rocks with Mn coating ALV-616 17.9670 -81.6130 -3662 ALV-616-1 0 Surface Mn coating Several Rock; igneous Hard ground Plutonic igneous rocks with Mn coating ALV-617 19.1480 -81.2170 -3084 ALV-617-1 0 Surface Mn staining Several Rock; limestone Hard ground Authigenic limestone Fe-Mn stained along with volcanic ash ALV-619 19.0930 -81.3320 -3657 ALV-619-1 0 Surface Mn coating Several Rock; metamorphic, volcanics Hard ground Metamorphic rock and volcanics breccia with Mn coating ALV-620 18.3770 -81.7300 -3663 ALV-620-1 0 Surface Mn coating Several Rock; metamorphic, igneous Hard ground Metamorphic and plutonic igneous rocks with Mn coating ALV-621 18.3800 -81.7520 -3187 ALV-621-1 0 Surface Mn coating Several Rock; igneous, metamorphic Ooze Calcareous ooze Plutonic igneous and metamorphic rocks with Mn coating along with calcareous ooze ALV-622 18.3750 -81.7680 -2866 ALV-622-1 0 Surface Mn coating Several Rock; metamorphic Ooze Siliceous ooze Metamorphic rocks with Mn coating along with siliceous ooze or mud ALV-623 18.4100 -81.7870 -3658 ALV-623-1 0 Surface Mn coating Several Rock; metamorphic, igneous Hard ground Metamorphic and plutonic igneous rocks with Mn coating ALV-624 18.3530 -81.7430 -3657 ALV-624-1 0 Surface Mn coating Several Rock; metamorphic, volcanics Ooze Calcareous ooze Metamorphic rock, volcanics and igneous with Mn coating along with calcareous ooze ALV-625 18.3800 -81.8070 -2228 ALV-625-1 0 Surface Mn coating Several Rock; volcanics, igneous Hard ground Volcanics breccia and plutonic igneous rocks with Mn coating