1. the pressure that pushes sedimentary rock into fold comes from a. isostasy b.
ID: 11471 • Letter: 1
Question
1. the pressure that pushes sedimentary rock into fold comes from a. isostasy b. vertical forces c. horizontal compression2. the surface feature that is produced when horizontal layers of sedeminatary rock rise without being folded is a ___ a. anticline, b. syncline, c. plateau or d. mountain
3. several things provide evidence that granite has melted, which of the following does NOT? a. domes, b. anticlines, c. alteration of the bottom sedentary layers by heat, d. seperation of the chemicals in granite. e. injection of ore-bearing fluids into sedentary rock above. f. none of the above or g. all of the above
4. the crust of the earth maintains its general shape, but breaks open ___will flow out, a. granite, b. lava, c. feldspar, d. limestone
5.t/f inland cities can become oceans
6. t/f growth rings appear only on invertebrate animals
Explanation / Answer
1. the pressure that pushes sedimentary rock into fold comes from a. isostasy b. vertical forces c. horizontal compression
Colliding, horizontal plates create mountains and the crust cracks into huge blocks; mountains form as plates collide by horizonal compression.
2. the surface feature that is produced when horizontal layers of sedeminatary rock rise without being folded is a ___ a. anticline, b. syncline, c. plateau or d. mountain
This is the definiton :)
3. several things provide evidence that granite has melted, which of the following does NOT?
a. domes, b. anticlines, c. alteration of the bottom sedentary layers by heat, d. seperation of the chemicals in granite. e. injection of ore-bearing fluids into sedentary rock above. f. none of the above or g. all of the above
Anticlines don't, but the others do:
Granite comes in three forms: I-type (igneous) granites appear to arise from the melting of preexisting igneous rocks, S-type (sedimentary) granites from melted sedimentary rocks (or their metamorphic equivalents in both cases). M-type (mantle) granites are rarer and are thought to have evolved directly from deeper melts in the mantle. A-type (anorogenic) granites now appear to be a special variety of I-type granites. The evidence is intricate and subtle, and the experts have been arguing for a long time, but that is the gist of where things stand now.
The immediate cause of granite collecting and rising in huge stocks and batholiths is thought to be the stretching apart, or extension, of a continent during plate tectonics. This explains how such large volumes of granite can enter the upper crust without exploding, shoving or melting their way upward. And it explains why the activity at the edges of plutons appears to be generally gentle and why their cooling is so slow.
4. the crust of the earth maintains its general shape, but breaks open ___will flow out, a. granite, b. lava, c. feldspar, d. limestone
5. FALSE inland cities can become oceans - FALSE - it must first became a costal city
6. FALSE growth rings appear only on invertebrate animals - FALSE, they also appear in plants like trees
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