Types, Properties, Formation, Compositions - Geology Science
2023年11月22日 · While arkose is distinct in its feldspar-rich composition, graywacke represents a broader category of sandstone with a more diverse mineralogy. These classifications help geologists communicate the specific characteristics of arkose rocks and understand the geological processes that led to their formation.
Arkose - Wikipedia
Arkose is typically grey to reddish in colour. The sand grains making up an arkose may range from fine to very coarse, but tend toward the coarser end of the scale. Fossils are rare in arkose, due to the depositional processes that form it, although bedding is frequently visible.
Arkose - Sedimentary Rocks - Sandatlas
If arkose is “dirty” (contains more than 15% of muddy component), it is named feldspathic (gray)wacke or arkosic wacke. Arkose has also been defined as a sandstone that contains more than 25% labile constituents of which feldspar forms more than half.
Greywacke Rock | Properties, Formation, Uses - Geology Science
2023年4月23日 · Greywacke is variation of sandstone that saperate from other to hardness, dark color, and poorly sorted angular grains of quartz and feldspar.. It is a textural immature sedimentary rock found in the Paleozoic layers. Larger grains can be from sand to pebble length, and matrix materials are in the order of 15% by volume of rocks.
杂砂岩 - 百度百科
杂砂岩（graywacke）定义为粘土基质含量大于15%的、分选性差、结构成熟度低、泥沙混杂的砂岩，属密度流沉积。 杂砂岩一般富含石英，含量可达50%。 石英一般有棱角，常有明显的波状消光。
Sedimentary rock - Wackes, Stratification, Deposition | Britannica
2024年12月20日 · Wacke, or graywacke, is the name applied to generally dark-coloured, very strongly bonded sandstones that consist of a heterogeneous mixture of rock fragments, feldspar, and quartz of sand size, together with appreciable amounts of mud matrix.
Petrographic classification of sand and sandstone - ScienceDirect
2019年5月1日 · The aim of this classification is to restore directness in sandstone petrology, and to avoid ambiguities generated in the past by making reference to badly defined archetypes, such as greywacke or arkose, thus confusing petrographic composition with subjective considerations about plate-tectonic setting, texture, hydraulic behaviour, mechanical ...
【长石石英砂岩】的英文翻译和相关专业术语-SCIdict学术词典-在 …
长石砂岩质班脱岩 arkosic bentonite. 长石砂岩质的 arkosic. 长石砂岩质砾岩 arkose conglomerate; arkosic conglomerate. 长石砂岩质砂岩 arkosite; arkosic sandstone. 长石砂岩质杂砂岩 arkosic graywacke. 次长石砂岩 subarkose. 底长石砂岩 basal arkose. 含杂质长石砂岩 dirty arkose. 混浊长 …
岩石-中英文对照 - 百度文库
41, graywacke ['greiw?k] n. 硬砂岩 graywacke: 杂砂岩|硬砂岩|岩，硬岩graywacke conglomerate: 浊砂砾岩 arkosic graywacke: 长石砂岩质杂砂岩 42, greenschist 绿片岩 65, migmatite ['miɡm?tait] n. [地质]混合岩，复片麻岩
Arkosic Graywacke · Geneseo Geoscience Collections
Coarse sand grains made of quartz, surrounded by smaller feldspar grains. Greenish blue surface color, minimal surface weathering. (Thin section FOV: 1.28)