Web1 Answer. Dykes are discordant igneous bodies of more or less tabular shape and exhibiting a cross -cutting relationship with the country rocks . Sills are tabular concordant igneous … WebDespite their concordant nature, many large sills change stratigraphic level within the intruded sequence, with each concordant part of the intrusion linked by relatively short dike-like segments. Such sills are known as transgressive, examples include the Whin Sill and sills within the Karoo basin. [10]

Sill (geology) - Wikipedia

WebDike is a tabular, discordant pluton:: it forms when molten rock is injected into the Earth's crust, and it cuts across rock layers Lopolith is a tabular, concordant pluton that is … WebIts primary feature is to be concordant and never crosscut, indeed, the foliation or bedding planes in the host, ... Sills are typically tabular (i.e. table-like), developing mainly along 2 directions and showing limited thickness. A dike is also a tabular intrusion but, contrarily to sills, is discordant with the structures of the host. arbania shirts

Igneous Rocks Lesson #12 Volcano World Oregon State University

WebA sill is a concordant intrusive sheet meaning that a sill does not cut across preexisting rock beds. … In contrast a dike is a discordant intrusive sheet which does cut across older rocks. Sills are fed by dikes except in unusual locations where they form in nearly vertical beds attached directly to a magma source. WebDike: a relatively narrow tabular discordant body, often nearly vertical Laccolith : concordant body with roughly flat base and convex top, usually with a feeder pipe below Lopolith : concordant body with roughly flat top … WebThere are two types of intrusive bodies that we are going to discuss 1)Discordant and 2) Concordant. A discordant igneous rock body cuts across the pre-exiting rock bed. Batholiths and dikes are examples of discordant rock bodies. A dike is a vertical or near vertical intrusive igneous rock body that cuts across rock beds. baker sachi