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 (OH) 4) and tiny fragments (silt -sized particles) of other minerals, especially quartz and calcite. [1]
Shale: Sedimentary Rock - Pictures, Definition & More - Geology.com
Shale: Shale breaks into thin pieces with sharp edges. It occurs in a wide range of colors that include red, brown, green, gray, and black. It is the most common sedimentary rock and is found in sedimentary basins worldwide.
Shale: Identification, Characteristics, and More
To identify shale, first observe its grain size and ensure that no individual grains can be seen with the naked eye. Next, look for thin, parallel layers and note if the rock tends to break along those surfaces. Shale specimens usually have sharp edges, and it is common for fossils to be present.
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. It is most abundant sedimentary rock.
Green Shale - an overview | ScienceDirect Topics
The Lewis Shale is a quartz-rich shale, in which the TOC content varies from 0.5% to 2.5%. The Antrim Shale consists of gray and green shale with pyrite and carbonate interlayers and shale rich in organic matter, including thin siltstone interlayers.
Shale Rock: Geology, Composition, Uses - ThoughtCo
2020年8月2日 · Key Takeaways: Shale. Shale is the most common sedimentary rock, accounting for about 70 percent of the rock in the Earth's crust. Shale is a fine-grained rock made from compacted mud and clay. The defining characteristic of shale is …
Shale geology: characteristics, formation, uses - ZME Science
2024年1月8日 · Shale is a fine-grained sedimentary rock, composed mostly of clay particles and other minerals such as quartz and calcite. It is formed of many thim mineral layers and is typically characterized...
Shale - Sandatlas
Shale is a lithified mud — a sedimentary rock composed mostly of clay- and silt-sized grains. There are several ways to define shale. Some definitions are rather narrow. Glossary of Geology published by the American Geological Institute defines shale as a laminated, indurated rock with >67% clay-sized minerals 1.
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.
Shale, Rocks and Minerals, Kentucky Geological Survey, …
2023年1月5日 · Shale is the most abundant of all sedimentary rocks. It is composed primarily of soft clay minerals, but may include variable amounts of organic matter, calcareous material, and quartz grains. Shale may be any color, but is generally greenish gray to grayish black.