How does the formation of this rock reflect the past environment it was formed i

Question

How does the formation of this rock reflect the past environment it was formed in? In other Give a specific example of how this rock type is Describe how each of these words, what do these rocks tell us about earth currently seen on earth and what it tells us about rock types forms. Igneous rocks form from the Intrusive igneous rocks require a slow cooling cooling of molten rock (Levin period, formed underground, and intruded into composed of granite rock. Granite has a 58). TreofRock 1 history its history. The Sierra Nevada mountain range in California is older racks. Erosion can reveal these hidden rocks phaneritic texture which must form underground by removing the rocks that buried them (Levin 59 This means that the granite of the Sierra Nevada 60). must have been created deep underground and then uplifted to be on the surface of earth's crust today ("Pacific Province"). igneous Rocks Extrusive igneous rocks... Another example of an igneous rock formation on earth is. Mafic (basaftic) igneous rocks... Intermediate (andesitic) irneous rocks Clastic sedimentary rocks An example of a sedimentary rock formation found on earth is Sedimentary rocks form Carbonate sedimentary rocks Other sedimentary rocks sedimentary Rocks An example of a metamorphic rock formation found on earth is Metamorphic rocks form Foliated metamorphic rocks Mentoliated rocks Metamorphic Rocks

Explanation / Answer

Igneous rock

Extrusive Igneous rocks require a fast cooling period, formed on the earth surface, and intruded into rocks.

Mafic (basaltic) igneous rock - is an igneous rock that is rich in magnesium and iron, and their presence gives mafic rock its characteristics in dark colour. Common mafic rocks include basalt and its coarse grained intrusive equivalent, gabbro.

Intermediate (andesitic) igneous rock - It is an extrusive rock intermediate in composition between rhyolite and basalt. It is of moderate viscosity and forms thick lavas flows and domes. It is intermediate in terms of its colour and generally uniformaly fine grained.

Example of igneous rock

Colombia River Basalt Group is a large igneous province. It is composed of a basalt rock, which is a common extrusive igneous rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of planet or moon.

Sedimentary Rock - are rocks formed from sediment. They are deposited over time, and often show layers which can be seen in cliffs.

Clastic Sedimentary Rocks - form by weathering processes which break down rocks into pebble, sand, or clay particles by exposure to wind, ice, and water.

Carbonte Sedimentary Rocks - it composed primarily of carbonate minerals. The two major carbonate sedimentary rocks are limestone which is composed of calcite or aragonite (different crystal forms of CaCO3) and dolostone, which is composed of the mineral dolomite (CaMg(CO3)2).

Other sedimentary rocks - Chemical sedimentary rocks which forms when mineral constituents in solution become supersaturated and inorganically precipitate.

An example of sedimentary rocks found on earth-

Virgin Formation found in Utah, US. It is composed of a siltstones, where it  is a sedimentary rock which has a grain size in the silt range, finer than sandstone and coarser than claystones.

Metamorphic Rock

Metamorphic rock form as a transformation of pre existing rock. It is a type of rock which has been changed by extreme heat and pressure.

Foliated Metamorphic Rock - are formed within the Earth's interior under extremely high pressures that are unequal, occurring when the pressure is greater in one direction than in the others. Such as genesis, slate.

Non- foliated Metamorphic Rock -  are formed around igneous intrusions where the temperatures are high but the pressures are relatively low and equal in all directions. Such as marble, quartizite.

An example of metamorphic rocks found on earth-

Wasatch Range in US. It is composed of Mississippian marble in a big cottonwood canyon.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.