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In the field of mineralogy, fracture is the texture and shape of a rock's surface formed when a mineral is fractured.Minerals often have a highly distinctive fracture, making it a principal feature used in their identification.
Practical Fracture Treatment 5th edition, page 187. Elsevier Health Sciences, 2008. ISBN 978-0-443-06876-8. Jefferson fracture: Sir Geoffrey Jefferson: fracture of first cervical vertebra: compression of neck: Jefferson fracture at Whonamedit? Jones fracture: Sir Robert Jones: fracture of base of 5th metatarsal extending into intermetatarsal ...
A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces. A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane. [1] Fractures can ...
Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms (basalt prisms), or columns. Columnar jointing occurs in many types of igneous rocks and forms as the rock cools and contracts.
A cataclastic rock is a type of fault rock that has been wholly or partly formed by the progressive fracturing and comminution of existing rocks, a process known as cataclasis. Cataclasis involves the granulation, crushing, or milling of the original rock, then rigid-body rotation and translation of mineral grains or aggregates before ...
Before forming a fault, there is a fracture process zone (FPZ). [5] [11] It is a region of microcracks near the tip of a rock failure. [5] [11] It is associated with the crack localization and related to energy dissipation. [11] The size of a fracture process zone is related to the specimen size. [11]
This page is intended to be a list of rock textural and morphological terms. A. Adcumulate; Agglomeritic; Adamantine a ... Fracture (geology) Fracture (mineralogy)
Pages in category "Fracture zones" The following 28 pages are in this category, out of 28 total. This list may not reflect recent changes. ...