Shale is a fine-grained sedimentary rock that belongs to the clastic category. It forms from the compaction of silt and clay-sized mineral particles, resulting in …
Breccia is a clastic sedimentary rock composed of angular rock fragments cemented together within a finer-grained matrix. These rock fragments can vary in size, composition, …
Clastic sedimentary rocks are formed from the accumulation, compaction, and cementation of weathered rock fragments, providing a fascinating glimpse into the Earth’s dynamic past. These …
Sedimentary rocks are formed from the accumulation, compaction, and cementation of mineral and organic particles over time. These captivating rocks record Earth’s history, preserving evidence …
Basalt is an extrusive igneous rock primarily composed of plagioclase feldspar, pyroxene, and sometimes olivine. It is characterized by a fine-grained or aphanitic texture and …
Obsidian is an extrusive igneous rock characterized by its glass-like appearance and lack of a crystalline structure. This unique rock is typically black or dark …
Scoria is an extrusive igneous rock characterized by its vesicular or porous texture, which results from the release of volcanic gases during the rock’s formation. …
Rhyolite is an extrusive igneous rock characterized by its fine-grained or aphanitic texture, formed by the rapid cooling of high-silica magma. Its class is felsic, …
Andesite is an extrusive igneous rock that falls within the intermediate category, situated between felsic and mafic rocks in terms of silica content. Its class …
Dacite is an extrusive igneous rock that is predominantly felsic in composition, characterized by its intermediate to high silica content. It typically exhibits a fine-grained …
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