Shale | Properties, Composition, Formation, Uses - Geology Science
2023年8月21日 · Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals, especially quartz and calcite. Characteristic properties of shale is breaks along thin laminae or parallel layering or bedding called fissility.
Shale geology: characteristics, formation, uses - ZME Science
2024年1月8日 · Silty Shale: Predominantly composed of silt particles, this type has a slightly coarser texture than clay shale. It’s often found in environments where finer particles like clay are less...
Shale - Wikipedia
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g., kaolin, Al 2 Si 2 O 5 4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. [1]
Shale: Sedimentary Rock - Pictures, Definition & More - Geology.com
Shale is a fine-grained sedimentary rock that forms from the compaction of silt and clay-size mineral particles that we commonly call "mud." This composition places shale in a category of sedimentary rocks known as " mudstones." Shale is distinguished from other mudstones because it is fissile and laminated.
The rock mechanical properties of lacustrine shales: Argillaceous ...
2022年7月1日 · We thus conducted a series of petrophysical and rock mechanical tests on lacustrine shales to study the difference between argillaceous shales and silty laminae shales. We observed distinctly different rock mechanical properties for these two types shales.
Shale | Formation, Composition, Sedimentary | Britannica
Shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth. Shales are …
Shale Rock: Geology, Composition, Uses - ThoughtCo
2020年8月2日 · Shale is the most common sedimentary rock, accounting for about 70 percent of the rock found in the Earth's crust. It is a fine-grained clastic sedimentary rock made of compacted mud consisting of clay and tiny particles of quartz, calcite, mica, pyrite, other minerals, and organic compounds.
Lithofacies types and assemblage features of continental shale …
2020年8月1日 · Through comparative analysis, it is found that silty shale lithofacies (I 2), silty and clay shale lithofacies (II 1) and muddy siltstone lithofacies (III 2) are dominant in each interval.
Lithofacies and sedimentary characteristics of the Silurian …
2013年7月1日 · Silty-clayey interlaminated shale normally occurs in the upper part of the SLS. It is well-laminated, including some horizontal bedding and wavy laminations (Fig. 3E, 3F). The silt-size grains are mainly detrital quartz (~75 wt.%). This lithofacies is characterized by a lack of carbonate and relatively low content of TOC (1.5 wt.%).
X‐Ray Fluorescence for Laminated Silty Shale Reservoirs in Ordos …
2022年7月31日 · We analyzed the geochemical characteristics of shale using portable XRF and proposed a method to identify argillaceous shale, silty laminated shale, and calcareous laminated shale in the Chang 7 of Well Y1 (in Xiasiwan area). Furthermore, we established a lithoface identification standard.