Petrographic key parameters, modal proportions, amount of alteration and principal rock names for 39 gabbro samples form the Oman Ophiolite (Wadi Gideah Transect)
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2021
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| _version_ | 1867169440289783808 |
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| author | Müller, Samuel Garbe-Schönberg, Dieter Koepke, Jürgen Hoernle, Kaj |
| author_facet | Müller, Samuel Garbe-Schönberg, Dieter Koepke, Jürgen Hoernle, Kaj |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We have selected 39 gabbro samples from the Wadi Gideah Transect sample suite, representing a full coherent crustal profile from the Moho transition zone (MTZ) to the dike/gabbro transition with an average sample spacing of about 120 m along the crustal depth. All samples were taken at outcrops of fresh gabbro along the Wadi. The height above Moho (h.a.M.) was calculated with respect to the MTZ reference latitude of 22.9152N DD, assuming a generalized average dip of 28° for the layering of the lower gabbros in the Wadi Gideah area. The freshest and primary region of each hand specimen was cut into a block with a water-cooled diamond-blade saw, avoiding areas influenced by secondary weathering and hydrothermal overprint, and subsequently processed to a polished thin-section. We studied the thin-sections using a polarized light microscope to identify petrographic key parameters, which are presented here. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_934700 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Petrographic key parameters, modal proportions, amount of alteration and principal rock names for 39 gabbro samples form the Oman Ophiolite (Wadi Gideah Transect) Müller, Samuel Garbe-Schönberg, Dieter Koepke, Jürgen Hoernle, Kaj Clinopyroxene, altered; Clinopyroxene, grain size; Clinopyroxene, habit; Clinopyroxene, modal; Clinopyroxene, shape; crystallization temperature; Date/Time of event; Depth above Mohorovicic discontinuity; EMPA; EPMA; Event label; foliated gabbro; fossile ocean crust; gabbro; Geochemistry; Grain size description; HAND; Hornblende, modal; in situ data; LA-ICPMS; LA-ICP-MS; Latitude of event; layered gabbro; Longitude of event; major and trace element data; Major and trace elements; major element analysis; major elements; microscopy; Mineral compositions; mineral data; Minerals, total alteration; Minerals, total modal primary; modal proportions; ocean crust accretion; ocean crust formation; oceanic crust; olivine; Olivine, altered; Olivine, grain size; Olivine, habit; Olivine, modal; Olivine, shape; OM10-A13; OM10-A14b; OM10-A16; OM10-A17; OM10-A17-1; OM10-A18; OM10-A18-1; OM10-A18-2a; OM10-A19; OM10-A20; OM10-A26; OM10-A27; OM10-A28; OM10-A30; OM10-A32; OM11-A21A; OM11-A22; OM11-A26; OM11-A29-2; OM12-025; OM12-038; OM12-039; OM12-040; OM12-044; OM12-048; OM12-052; OM12-054; OM12-055; OM12-201; OM12-206; OM12-217; OM12-218; OM12-219; OM15-10; OM15-18; OM15-24; OM15-27; OM15-30; OM15-33; Oman; Oman Ophiolite; ophiolite; Orthopyroxene, modal; Oxides, modal; Petrography; Plagioclase, altered; Plagioclase, grain size; Plagioclase, habit; Plagioclase, modal; Plagioclase, shape; Plagioclase, zoning; Plagioclase, zoning type; rock description; Rock type; Samail Ophiolite; Sampling by hand; Temperature; thin-section; trace- and major elements; trace element; trace elements; Unit; Wadi Gideah; Wadi Gideah Transect We have selected 39 gabbro samples from the Wadi Gideah Transect sample suite, representing a full coherent crustal profile from the Moho transition zone (MTZ) to the dike/gabbro transition with an average sample spacing of about 120 m along the crustal depth. All samples were taken at outcrops of fresh gabbro along the Wadi. The height above Moho (h.a.M.) was calculated with respect to the MTZ reference latitude of 22.9152N DD, assuming a generalized average dip of 28° for the layering of the lower gabbros in the Wadi Gideah area. The freshest and primary region of each hand specimen was cut into a block with a water-cooled diamond-blade saw, avoiding areas influenced by secondary weathering and hydrothermal overprint, and subsequently processed to a polished thin-section. We studied the thin-sections using a polarized light microscope to identify petrographic key parameters, which are presented here. |
| title | Petrographic key parameters, modal proportions, amount of alteration and principal rock names for 39 gabbro samples form the Oman Ophiolite (Wadi Gideah Transect) |
| topic | Clinopyroxene, altered; Clinopyroxene, grain size; Clinopyroxene, habit; Clinopyroxene, modal; Clinopyroxene, shape; crystallization temperature; Date/Time of event; Depth above Mohorovicic discontinuity; EMPA; EPMA; Event label; foliated gabbro; fossile ocean crust; gabbro; Geochemistry; Grain size description; HAND; Hornblende, modal; in situ data; LA-ICPMS; LA-ICP-MS; Latitude of event; layered gabbro; Longitude of event; major and trace element data; Major and trace elements; major element analysis; major elements; microscopy; Mineral compositions; mineral data; Minerals, total alteration; Minerals, total modal primary; modal proportions; ocean crust accretion; ocean crust formation; oceanic crust; olivine; Olivine, altered; Olivine, grain size; Olivine, habit; Olivine, modal; Olivine, shape; OM10-A13; OM10-A14b; OM10-A16; OM10-A17; OM10-A17-1; OM10-A18; OM10-A18-1; OM10-A18-2a; OM10-A19; OM10-A20; OM10-A26; OM10-A27; OM10-A28; OM10-A30; OM10-A32; OM11-A21A; OM11-A22; OM11-A26; OM11-A29-2; OM12-025; OM12-038; OM12-039; OM12-040; OM12-044; OM12-048; OM12-052; OM12-054; OM12-055; OM12-201; OM12-206; OM12-217; OM12-218; OM12-219; OM15-10; OM15-18; OM15-24; OM15-27; OM15-30; OM15-33; Oman; Oman Ophiolite; ophiolite; Orthopyroxene, modal; Oxides, modal; Petrography; Plagioclase, altered; Plagioclase, grain size; Plagioclase, habit; Plagioclase, modal; Plagioclase, shape; Plagioclase, zoning; Plagioclase, zoning type; rock description; Rock type; Samail Ophiolite; Sampling by hand; Temperature; thin-section; trace- and major elements; trace element; trace elements; Unit; Wadi Gideah; Wadi Gideah Transect |
| url | https://doi.org/10.1594/PANGAEA.934700 |