PPT-Geologic and Rock Cycles,

Fossils and Unconformities The Geologic Cycle 3 key events deposition uplift erosion Sedimentation of beds AD beneath the sea Uplift above sea level and exposure of D to erosion Continual erosion strips D away completely and exposes C to erosion. Astronaut Video: . Sarychev. Volcano Eruption. Lithology. – rock type of surface rocks and bedrock. Structure. – folding, faulting and deformation of rocks . Landforms. . – terrain features formed by natural processes that appear similar wherever they are found (Way 1973); Can be erosional or depositional. 01: . Geologic Time . Scale. Huge sections of time are broken down into smaller groups of time:. E. ons, Eras, . P. eriods, and . E. pochs. Eon. is the largest time block. . (kind of like what we would think of as years).. 01: . Geologic Time . Scale. Huge sections of time are broken down into smaller groups of time:. E. ons, Eras, . P. eriods, and . E. pochs. Eon. is the largest time block. . (kind of like what we would think of as years).. Textbook for geologists (2002). Geologic map of the Sheep Mt. Anticline, Wyoming, based on air photos.. From . Banjeree. and . Mitra. . 2004. AAPG Bulletin 88(9):1227-1237.. What are the primary applications of aerial photographs for geologists?. Relative Dating. How old is the Earth?. The Earth is about 4.6 billion years old. Much of its history is recorded in the rocks. Observations of fossils, rock types, evidence of . faulting, uplift, and folding as well as igneous . Geological “Clocks”. Geologic time determination is subdivided into 2 categories:. Relative Dating: simply determines whether or not an event occurs before or after another event (e.g. a granite dike is younger than the surrounding sandstone since it intrudes across the sandstone in an outcrop).. Regents Earth Science. Miss Wojdan. The . presence of coal in Antarctica indicates . that. Forests can grow on continental . . glaciers. Coal can form in cold climates. Antarctica’s climate was once warmer. Favs. .. . Where do sediments come from?. - Weathering. – breaking down rock into smaller pieces chemically and physically.. - Erosion. - carrying away the particles and depositing them. . Glaciers. Section 12.1 Discovering earth’s history. Uniformitarianism – the idea that physical, chemical, and biological laws that operate today also operated in the past; the present is the key to the past.. Relative age dating:. Age of a rock compared to other rocks. Used to understand a sequence of events. What are the ways to tell . RELATIVE AGE. .. 1. Law of Superposition (Undisturbed) . 2. Extrusion & Intrusion (Igneous Rock). Abiotic Cycles There are 6 major Abiotic cycles Hydrologic (Water) Cycle Carbon Cycle Nitrogen Cycle Phosphorus Cycle Sulfur Cycle Rock Cycle Hydrologic Cycle Hydrologic Cycle Condensation – gaseous water molecules turning into liquid water molecules Normally we think of time in terms of days or years but geologists commonly refer to events that happened millions or billions of years ago. For example earth is approximately 4.6 billion years old. GEOLOGIC TIME. H. ub. . (ASH) . p. roject. Reservoir Characterization Studies. Pennsylvania Geological Survey (Pittsburgh, PA). A geologic study of the potential to build an Appalachian storage hub. Data collection and project database development. What is it and Why do we care? . What is the geologic time scale? . . Geologic Time Scale:. A record of the Earth’s . history broken up into . various units of time that. are based on types of . fossils contained within .