(Table 1) Chemical composition of plagioclase and amphibole-pyroxene containing samples from pyroxene-amphibole-asbestos rock collected in the Hess Deep
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1978
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| _version_ | 1867170920791015424 |
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| author | Rozanova, Tamara V Drits, Victor A Dmitrik, A L |
| author_facet | Rozanova, Tamara V Drits, Victor A Dmitrik, A L |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Recent sediments with distinct signs of hydrothermal alteration sampled in the Hess Deep(Galapagos Ridge, East Pacific Rise) contained a piece of ash-gray rock, which differed from other rock fragments by degree of consolidation, conchoidal fracture, and had properties of asbestos. Our studies found that the sample represented mixture of asbestos-like pyroxene of diopside-hedenbergite composition, amphibole of tremolite composition and a new mineral, which basic structure consisted of bands of triple pyroxene chains with the radical [Si6O16]. The latter can be regarded as intermediate between amphiboles and layered silicates. Also in some parts of the sample presence of trioctahedral vermiculite-chlorite was indicated. Genesis of the studied asbestos rock is considered from the standpoint of high-temperature hydrothermal-metasomatic alteration of sediment by post-magmatic mineralized halide solutions. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_777562 |
| institution | PANGAEA |
| language | en |
| publishDate | 1978 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Chemical composition of plagioclase and amphibole-pyroxene containing samples from pyroxene-amphibole-asbestos rock collected in the Hess Deep Rozanova, Tamara V Drits, Victor A Dmitrik, A L Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Carbon dioxide; Chlorine; Chromium(III) oxide; DM8; DM8-532; Dmitry Mendeleev; Iron oxide, Fe2O3; Iron oxide, FeO; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; MULT; Multiple investigations; Phosphorus pentoxide; Potassium oxide; Sample type; Silicon dioxide; Sodium oxide; Southeast Pacific; Sulfur, total; Titanium dioxide; Water in rock; Wet chemistry Recent sediments with distinct signs of hydrothermal alteration sampled in the Hess Deep(Galapagos Ridge, East Pacific Rise) contained a piece of ash-gray rock, which differed from other rock fragments by degree of consolidation, conchoidal fracture, and had properties of asbestos. Our studies found that the sample represented mixture of asbestos-like pyroxene of diopside-hedenbergite composition, amphibole of tremolite composition and a new mineral, which basic structure consisted of bands of triple pyroxene chains with the radical [Si6O16]. The latter can be regarded as intermediate between amphiboles and layered silicates. Also in some parts of the sample presence of trioctahedral vermiculite-chlorite was indicated. Genesis of the studied asbestos rock is considered from the standpoint of high-temperature hydrothermal-metasomatic alteration of sediment by post-magmatic mineralized halide solutions. |
| title | (Table 1) Chemical composition of plagioclase and amphibole-pyroxene containing samples from pyroxene-amphibole-asbestos rock collected in the Hess Deep |
| topic | Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Carbon dioxide; Chlorine; Chromium(III) oxide; DM8; DM8-532; Dmitry Mendeleev; Iron oxide, Fe2O3; Iron oxide, FeO; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; MULT; Multiple investigations; Phosphorus pentoxide; Potassium oxide; Sample type; Silicon dioxide; Sodium oxide; Southeast Pacific; Sulfur, total; Titanium dioxide; Water in rock; Wet chemistry |
| url | https://doi.org/10.1594/PANGAEA.777562 |