'Igneous intrusions' diaporamas de présentation

VOLCANO NOTES

VOLCANO NOTES. There are 2 types of volcanism Intrusive ---- magma cools below the surface and makes plutons (igneous intrusions) Extrusive- --liquid rock lava cools on the surface (volcanoes, lava plateaus). Igneous Intrusions. Dikes

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Chp 7: Metamorphic Rocks

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Calving Glacier

Calving Glacier. http://www.youtube.com/embed/hC3VTgIPoGU?rel=0. Aim --> Sequence of Events. Uniformitarianism - processes that occur today have always occurred. "The present is the key to the past." Examples include weathering, erosion, earthquakes etc.

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A Little History of Eruptions

A Little History of Eruptions. We will now look at some volcanic eruptions through history There are, on average, about 50 volcanic eruptions every year Most are not violent nor are they very destructive Mt. St. Helens will be our bench mark. Historical Benchmark.

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IGNEOUS ROCKS

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HISTORICAL GEOLOGY LECTURE 10. LATE PALEOZOIC GEOLOGY I.

HISTORICAL GEOLOGY LECTURE 10. LATE PALEOZOIC GEOLOGY I. . The Late Paleozoic (Devonian-Mississippian-Pennsylvanian-Permian) is noted for a number of geologically significant events:. - widespread COLONIZATION of the land by large plants, reptiles and amphibians.

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THE LESS-PRIMORDIAL EARTH The Mesoproterozoic Era (1.0-1.6 byBP)

THE LESS-PRIMORDIAL EARTH The Mesoproterozoic Era (1.0-1.6 byBP). Grenville Province Orogenic Belt (0.9-1.3 byBP). Contains metamorphosed sedimentary rocks, igneous intrusions. THE LESS-PRIMORDIAL EARTH The Mesoproterozoic Era (1.0-1.6 byBP). Grenville Province Orogenic Belt (0.9-1.3 byBP).

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RELATIVE AGE DATING LAB ACTIVITY

RELATIVE AGE DATING LAB ACTIVITY. Were any layers of rock deposited after the igneous intrusion happened? (Explain your reasons) No, the igneous intrusion goes through all of the rock layers. 2. What is the youngest (most recent) event that happened in this diagram? (Explain how you know)

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Unconformity

Unconformity. Break in the geologic record created when rock layers are removed by erosion. Evidenced by: Erosion Time gap Distortion of strata (folding and/or faulting) Igneous intrusions or lava flows (dikes, sills, and laccoliths). Igneous Rock. Nonconformity.

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6.2 Igneous Rocks

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