دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

estimation/measurement of age of a formation, fossil, etc., in years before the present.

n: an international trade organisation of landmen and related professionals. Its official publication is The Landman. Address: 4100 Fossil Creek Blvd.;Fort Worth, TX 76137;(817) 847- 7700.

n: a part of a stratigraphic unit that differs in its fossil fauna and flora from the rest of the unit.

a segment of geoscience where fossils are used to date or identify a reservoir.

succession n: the principle that fossils in a stratigraphic sequence succeed one another in a definite, recognisable order.

n: a bed or deposit composed throughout of substantially the same kind of rock;often a lithologic unit. Each formation is given a name, frequently as a result of the study of the formation outcrop at the surface and sometimes based on fossils found in the formation.

n: a bed or deposit composed throughout of substantially the same kind of rock and forming a lithologic unit.

any distinct, mapable layer.

n: the remains or impressions of a plant or animal of past geological ages that have been preserved in or as rock.

the silicate replaced replica of an animal or plant.

coal, natural gas or oil.