Geography, 07.11.2019 23:31, 20guadalupee73248

Which of the following geological features can form at a subduction zone? a. volcanism and mountain ranges b. mid-ocean ridges c. mantle convection d. magnetic anomalies

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Geography, 10.10.2019 01:30, starbae7177

Plate tectonic features: find the following places on a world map, label your blank map with its number, determine the plate tectonic setting and features including (a) type of boundary, if any nearby, and approximate distance and direction from boundary, (b) physiographic features, (c) volcanism, (d) types of rocks being formed, and (e) earthquakes that occur. (see hefferan 7-18) plate tectonic setting and features for each region, choose all that apply from each letter below a) tvpe of boundary convergent (w/subduction zone extending into mantle, 100s of km under overriding plate), divergent (w/oceanic ridge system and nift valley), transform (w/transform fault). hot spot volcanic activity (not a type of boundary, may occur at or away from boundaries) lb) leconv.) oceanic trench, (over subduction zone mountain range with volcanic arc, or island arc of composite volcanoes, (div.) rift valley, mid- ocean ridge system, basalt plateaus (on land), @hot spots) shield volcanoes, (e trans fault trace, offset mountains or mid-ocean ridges c) volcanism and location relative to boundary: (over subd. zone, ie, not at boundary) explosive eruptions of rhyolitic pyroclastics, @div. & hot spots) fissure eruptions, basalt floods lif on land), shield volcanoes [if on land), mid-ocean ridges of pillow basalts (for submarine eruption) (d) types of rocks currently forming and where they are located relative to boundary over subduction zone (not at boundary): granitic (at depth), rhyolitic (volcanic),& metamorphic, divergent (and hot spots): basalltic (volcanic) e) earthquake characteristics lindicate position relative to boundary): (conv.) strong shallow along boundary, deep over subduction zone (div. and hot spots) shallow and mild to moderate, letrans) mod.-strong, shallow 1. mid-atlantic ridge from north of iceland to the southern atlantic (see tectonic map from lecture d. 2. iceland (see hefferan fig. 1.3 and tectonic map from lecture) b. 3. peru-chile & andes mountains (note: not at boundary but inland from oceanic trench) b.

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Biology, 11.10.2019 12:30, cassiuspricerules

1: how does sea-floor spreading occur? a, new materials are being added to the asthenosphere. b, earthquakes break apart the ocean floor. c, sediments accumulate at the area of spreading. d, molten material beneath earth's crust rises to the surface. 2, which features form the longest mountain range on earth? a, the mid-ocean ridges. b, the deep-ocean trenches. c, the rockies d, the andes. < my answer. 3, how does sub-duction change the ocean floor? a, subduction causes magma to accumulate on the ocean floor. b, subduction causes oceanic crust to break into pieces. c, subduction causes the ocean floor to sink into deep ocean trenches. d, subduction causes metamorphic rocks to form. i'm not sure what subduction is, could you explain it to me? i kind of understand sea-floor spreading but am not really sure? ? i'm pretty sure i have number 2 right though. so much for any you can offer at all, wrong or right answer! trying is better than not trying haha. btw, this is a long overdue lesson so i need to get it in soon as possible.

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Chemistry, 08.11.2019 20:31, granthazenp5e9mj

Which of the following geological features can form at a subduction zone? o a. mid-ocean ridgeso b. magnetic anomalieso c. mantle convectionod. volcanism and mountain ranges

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Chemistry, 08.11.2019 22:31, Yasminl52899

1. an undersea mountain range is called a) rift b) seafloor spreading c) mid-ocean ridge d) continental drift 2. what fuels sea floor spreading? a) convection currents b) the crust c) subduction d) convergent boundaries 3. process by which new ocean crust forms a) seafloor spreading b) continental drift c) mid-ocean ridge d) rift 4. which picture demonstrates a divergent plate boundary? (the picture is at the ) a) a b) b c) c d) none of the above 5. what is plate tectonics? a) the theory of plates moving slowly over the mantle b) the theory of mountain forming c) the theory of plates subducting under the mantle d) the theory of pangaea 6. the newest seafloor is located? a) closest to the mid-ocean ridge b) farthest from the mid-ocean ridge c) in the mantle 7. what is the driving force behind the convention occurring in the earth’s mantle? a) heat from the sun b) heat from the earth’s core c) friction from rock material moving around d) magnetic pull from the moon 8. when looking at the mid ocean range, the oldest rocks are a) in the middle b) found far from the mid ocean ridges c) found close to the rift zone d) in the mantle 9. convection currents in the mantle leads to movement in a) asthenosphere b) earth’s core c) lithosphere d) pacific ocean 10. what is seafloor spreading? a) new areas of oceanic crust occurring through the up welling of magma at mid ocean ridges b) the moon c) a thing in the ocean d) mid-ocean trenches continually add new material to the ocean floor

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