sedimentary sequence

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• Sequence stratigraphy — is a relatively new branch of geology that attempts to link relative sea level changes to sedimentary deposits. The essence of the method is mapping of strata based on identification of surfaces which represent time lines (e.g. subaerial… …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …   Wikipedia

• sedimentary facies — Different, but contemporaneous and juxtaposed, sedimentary rocks. Terrigenous facies are accumulations of particles eroded from older rocks and transported to the depositional site. Biogenic facies are accumulations of whole or fragmented shells… …   Universalium

• Bouma sequence — The Bouma Sequence (after Arnold H. Bouma, 1962) describes a classic set of sedimentary beds (turbidites) deposited by a sediment water turbidity current. The Bouma Sequence specifically describes the medium grained variety, which are usually… …   Wikipedia

• Absaroka sequence — The Absaroka sequence was a cratonic sequence that extended from the end of the Mississippian through the Permian periods. It is the unconformity between this sequence and the preceding Kaskaskia that divides the Carboniferous into the… …   Wikipedia

• stratigraphic sequence — noun : a chronologic succession of sedimentary rocks …   Useful english dictionary

• Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …   Universalium

• dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …   Universalium

• Massif Central (geology) — The Massif Central forms together with the Armorican Massif (Brittany and Normandy) one of the two big basement massifs in France. Its geological evolution started in the late Neoproterozoic and continues to this day. It has been shaped mainly by …   Wikipedia

• Mareuil Anticline — The Mareuil Anticline, also called Mareuil Meyssac Anticline, is a structural high within the sedimentary sequence of the northeastern Aquitaine Basin. The northwest southeast trending anticline was caused by tectonic movements probably starting… …   Wikipedia