Louisiana State University

If rock is exposed to enough heat after metamorphism, it will eventually - Answer melt into magma. This figure shows the main subdivisions of the geologic timescale. Which of these is the Cenozoic? - Answer most current - our time This figure shows plate boundaries south of Alaska. Which location(s) is(are) likely to contain volcanoes above a subduction zone? - Answer 1 Mid-ocean ridges are elevated above the sea floor. The elevation of the sea floor - Answer dec...

Bowen's Reaction Series 1 - Answer Olivine BRS 2 - Answer Pyroxene BRS 3 - Answer Amphibule BRS 4 - Answer Biotite BRS 5 - Answer Muskovite BRS 6 - Answer K feldspar BRS 7 - Answer Quartz Two ways to classify the earth - Answer Physical and chemical Physical earth layer 1 - Answer Lithosphere 150 km Physical earth layer 2 - Answer Asthenosphere 400-600 km Physical earth layer 3 - Answer Mesosphere ...

The three types of tectonic plate boundaries are - Answer Divergent, convergent, and transform The Lithosphere is made up of - Answer the crust and the upper most part of the mantle which layers of the earth are liquid? - Answer outer core The distinction between the crust and mantle is primarily different in ______. - Answer Chemical composition (mineral content) The distinction between the lithosphere and the asthenosphere is primarily on the basis of a diff...

Convergent boundary - compression Divergent boundary - Tension Transform boundary - shear - Answer Match the tectonic boundary with the type of stress affecting it Heat; pressure - Answer ________ and ________ drive water from the pores of a subducted oceanic plate, which leads to partial melting. Salt; oil Air; heat Heat; pressure Compression; tension True - Answer T/F: The magnetic poles roughly correspond to the locations of the geographic poles. It is u...

What are the igneous rock textures? - Answer glassy, porphyritic, phaneritic, aphanitic, pyroclastic, pegmatitic Glassy - Answer -occur during some volcanic eruptions when the lava is quenched so rapidly that crystallization cannot occur -the result is a natural amorphous glass with few or no crystals Porphyritic - Answer -mixed fine texture and coarse texture -develop when conditions during cooling of a magma change relatively quickly. The earlier formed minerals wil...

Which characteristic describes the troposphere? -contains the ozone layer -has the highest air pressure -spans 12-50 km above Earth -is a good place for planes to fly - Answer -has the highest air pressure Which correctly lists three characteristics that are used to describe air? -altitude, density, radiation -density, radiation, mass -mass, pressure, density -pressure, altitude, radiation - Answer -mass, pressure, density Which gas is most abundant in Earth's atmosp...

coastal environments: significance - Answer - global population 2/3 of population line in coastal zone - economic activity/ infrastructure-harbors, recreation, resource extraction - dynamic-tremendous amounts of energy moving through - very young coastal environments: littoral zone - Answer - littoral zone-section of coastal environment where marine processes are capable of making changes - offshore-water too deep to make changes - nearshore-first of water zones - surf zone-...

The study of the spatial distribution of phenomena on earth's surface - Answer Geography What are the 2 divisions of geography? - Answer Human geography and physical geography Branch of geography dealing with how human activity affects or is influenced by earth's surface - Answer Human geography Branch of geography dealing with natural features and processes - Answer Physical geography What are the 4 spheres of geography? - Answer Biosphere, lithos...

Significance of population on coastal environments - Answer as population density and economic activity increases, pressure on coastal ecosystems increases Significance of transportation on coastal environments - Answer coasts are used for transport of material in the sea and along the coast by waves Littoral zone - Answer the area of shoreline where land is subject to wave action Offshore zone - Answer the area of deeper water beyond the point at which waves beg...

active continental margin - Answer Found along a continental plate margin that is convergent or lateral with an oceanic plate -commonly sites of tectonic activity -sites of active erosion & weathering erosional coasts - Answer -do not have to be active margins -drop in relative sea level (either tectonic uplift (isostatic) or drop in atual sea level (eustatic) -strong wave energy -high relief dominant feature of erosional coasts - Answer cliff a cliff is produced...