7、The mineral composition of a sample of igneous rock.
11、A dense igneous rock that consists mainly of olivine and is a source of magnesium.
15、A change within an intrusive igneous rock caused by the assimilation of portions of the surrounding rock.
19、The magmatic rock intrudes relative seriously in Wangying Colliery, rock-burst and gas outburst mainly take place near igneous rock wall.
23、Potassium-argon dating: Method for determining the age of igneous rocks Based on the amount of argon-40 in the rock.
27、In study area, the igneous rocks consist of intrusive and volcanic rocks. the intrusive rock in this area are called Tanggula mountain rock which is part of Tanggula magmatic belt.
31、Such isolated droplets must have formed in free space, rather than as part of a larger body, or else they would have merged into a more conventional igneous rock.
35、In geology, igneous rocks were once hot liquid.
39、The intrusion sequence for igneous rocks is indicated by crosscutting and inclusion relationships.
43、Method Through overlapping plotting by using fine structural map, the traps aboveand bellow the igneous rocks in block Gao 39 were rerecognized.
2、An igneous rock consisting chiefly of pyroxenes.
6、An igneous rock consisting chiefly of pyroxene and nepheline.
12、A body of igneous rock formed beneath the surface of the earth by consolidation of magma.
17、Application of self-organization maps network in identifying the lithology of igneous rock
22、a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.
28、In the southern end of the region, they're found to be made of dark dolomite, while the stones from the adjacent slopes consist more of tan-colored igneous rock.
33、Key points: texture, structure and classification of igneous rocks.
38、Derived from magma poured out or ejected at the earth's of igneous rocks.
44、The degree of geological work and research for the deposit is quite low. The ore body is obviously controlled by basic igneous rocks of Wanbaogou group and structural faults.
4、A light-colored igneous rock consisting essentially of alkali feldspar.
10、A xenolith - "foreign rock" in Greek - is a rock fragment foreign to the igneous rock in which it is embedded.
18、The molten rock in the Earth that can either rise to the surface as lava and form extrusive igneous rock or cool within the Earth to form plutonic igneous rock.
25、A dark - gray to black, fine - textured igneous rock composed mainly of feldspar and pyroxene and used for monuments and as crushed stone.
32、Contrast the formation of intrusive and extrusive igneous rocks.
40、Is there any other way of producing igneous rocks besides the volcanic eruption?
1、Plutonic igneous rock having visibly crystalline texture.
9、The molten rock material under the earth's crust, from which igneous rock is formed by cooling.
20、igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt.
29、The results of well-to-seismic calibration are effective by selecting Permian igneous rock and Carboniferous double-peak limestone as the reference layers, adjusting appropriately acoustic velocity and choosing the most suitable wavelet.
37、Its compounds are found in practically all igneous rocks and their sand deposits.
3、A dark, fine - grained igneous rock;diabase.
14、It and OMEGA have revealed a diversity of igneous rock compositions that rivals Earth's.
26、the commonest type of solidified lava; a dense dark gray fine-grained igneous rock composed chiefly of calcium-rich plagioclase feldspar and pyroxene.
41、Any of several intermediate igneous rocks constituting feldspar and ferromagnesium minerals that occur as dikes and minor intrusions.
8、A mass of igneous rock intruded between layers of sedimentary rock, resulting in uplift.
24、The paper discusses igneous rock lithological features, spatial distributive characters and its influence on coal seam and coal quality of Huanghebei coalfield, Sha ndong Province.
42、Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily.
16、Of or relating to igneous rock that is forced while molten into cracks or between other layers of rock.
36、Because they have been extruded or pored out on the earth's surface, igneous rocks from volcanoes are called extrusive igneous rocks.
21、The igneous rock kimberlite sets off a yellow diamond from South Africa, a country known for its diamond mines.
5、A conspicuous, usually large, crystal embedded in porphyritic igneous rock.
45、In the Jizhong Depression, the Cenozoic igneous rocks, distributing within the Eogene strata, trend to be younger in age but increase in thickness, and in area from the south toward the north.
13、Lower Carboniferous is composed of sea facies fragments and mid-acidic component igneous rock.
34、rare plagioclastic feldspar occurring in many igneous rocks.
30、Introduced are principle and method of applying Stoneley wave and the anisotropy of shear wave picked from the dipole shear wave image logging to evaluate the fracture effectivity of igneous rock.
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