Antonym of syncline. But that does not mean there are rocks available for study for all of these time units. 3. n. [Formation Evaluation] A general term for the rock around the borehole.In the context of formation evaluation, the term refers to the volume of rock seen by a measurement made in the borehole, as in a log or a well test.These measurements indicate the physical properties of this volume. List of Minerals, Large mineral database and mineralogy reference, GeologyPage Opposite of phaneritic. geologic time. List Edit. The term implies extrememly long duration or remoteness in the past, although no precise limits can be set. The figure of the geologic time scale, represents time flowing continuously from the beginning of the Earth, with the time units presented in an unbroken sequence. anticline - A fold of rock layers with a convex shape pointing upwards. There are numerous topics in the field of geology, some of which include oceanography, geoarchaeology, geophysics, volcanology, paleontology, and plate tectonics, just to name a few. Geologic Time Scale with ages shown in … Definitions of terminology used in geology. Aa flows commonly develop from pahoehoe flows as they cool and lose gas. Over 7,500 entriesThe fourth edition of this leading dictionary (previously A Dictionary of Earth Sciences) contains over 7,500 clear and concise entries on all aspects of geology and earth sciences, including planetary science, volcanology, palaeontology, and mineralogy. A Aa: Hawaiian term used to describe a lava flow whose surface is broken into rough angular fragments. Absolute Date: An estimate of the true age of a mineral or rock based on the rate of decay of radioactive minerals. Geologic history of Earth, evolution of the continents, oceans, atmosphere, and biosphere.The layers of rock at Earth’s surface contain evidence of the evolutionary processes undergone by these components of the terrestrial environment during the times at which each layer was formed. note: The following is taken from several on-line sources, chiefly Illustrated Glossary of Geologic Terms by Steven M. Richardson, professor of geology at Iowa State University (based on the glossary in Earth: An Introduction to Geologic Change, by S. Judson and S.M. Find more similar words at wordhippo.com! The time extending from the end of the formative period of the earth to the beginning of human history; the part of the earth's history that is recorded in the succession of rocks. Geology Key Terms Synonyms for geology include geography, chorography, geomorphology, cartography, physiography, topology and earth science. Sorted by name; initial letter means Igneous, Sedimentary or Metamorphic rocks.. 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