Mineralogy of sediments at DSDP Leg 67 Hole
| Cobertura |
MEDIAN LATITUDE: 12.755498 * MEDIAN LONGITUDE: -90.922948 * SOUTH-BOUND LATITUDE: 12.496300 * WEST-BOUND LONGITUDE: -91.037700 * NORTH-BOUND LATITUDE: 13.063700 * EAST-BOUND LONGITUDE: -90.795200 * DATE/TIME START: 1979-05-17T00:00:00 * DATE/TIME END: 1979-06-18T00:00:00 |
|---|---|
| Data(s) |
29/07/1982
|
| Resumo |
Seven sites were drilled during Leg 67 along a transect across the Middle America Trench off Guatemala: four (Sites 494, 496, 497, and 498) on continental slope, two (Sites 499 and 500) on Trench floor, and one (Site 495) on the Cocos Plate. We studied the mineralogy of sediments from Sites 494, 495, 496, 499, and 500. Our objective was to investigate the origin and source of separate minerals and mineral assemblages, giving special attention to the influence of the alteration of basalts on the sediment mineralogy, which we expected to be particularly important in layers just above oceanic basement. |
| Formato |
application/zip, 5 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.817309 doi:10.1594/PANGAEA.817309 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Kurnosov, Victor B; Murdmaa, Ivar O; Kazakova, Vera P; Mikhina, Vladlena; Shevchenko, Alla Ya (1982): Mineralogy of sediments from the Middle America Trench (Guatemala Transect). In: Abouin, J; von Huene, R; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 67, 515-528, doi:10.2973/dsdp.proc.67.119.1982 |
| Palavras-Chave | ## = Sample test with 10% HC1 1 hour at 90°-100°C.; <2 µm; <2 µm; coefficient Z indicates the ratio of 17Å-peak shoulder; >20 µm; >20 µm; coefficient Z indicates the ratio of 17Å-peak shoulder; 2-20 µm; 2-20 µm; coefficient Z indicates the ratio of 17Å-peak shoulder; 67-494; 67-494A; 67-495; 67-496; 67-499; 67-499B; 67-500; Act; Actinolite; Amorph; Amorphous phase; Ap; Apatite; Barite; Biogenic; #0 = CaCO3 dissolved in 5% HCl; Biotite; Brt; bSiO2; Bt; Cal; Calcite; Chl; Chlorite; Clinoptilolite; Clinopyroxene; Counting; Cpt; Cpx; Deep Sea Drilling Project; Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Ep; Epidote; Event; Feldspar; Fragm; Fragments; Fsp; Garnet; Glauconite; Glomar Challenger; Glt; Grt; Hbl; Heavy minerals; HM; Hornblende; Includes rock fragments, clay aggregates, and altered minerals; #58 and #8 = mainly Fe-Mn micronodules; Kaolinite+Chlorite; Kln+Chl; Label; Leg67; Lithologic unit/sequence; Mica; n < 1.54; n > 1.54; North Pacific/TRENCH; ODP sample designation; Ol; Olivine; Opal, biogenic silica; Opx; Orthopyroxene; Phosphate, biogenic; Pl; Plagioclase; PO4 biog; Quartz; Qz; Sample 67-494-34-CC,6-10 test with 10% HC1 1 hour at 90°-100°C; Sample code/label; Sme; Smectite; Sphene; Spinel; Spl; Spn; Transparent minerals in the heavy fraction; Unit; Volcanic glass; Volcanic glass, acidic; Volc glass; Volc glass acidic; X-ray diffraction (XRD); z; Zeo; Zeolite; Zircon; Zrn |
| Tipo |
Dataset |
