volcanic rock造句

It's built on volcanic rock and ash.

The reservoirs in Permian is consist of carbonate rock, tuff, clastic rock and volcanic rock.

Kailu basin is a volcanic rock basin of continental facies.

The pools are built from volcanic rock columns and fragrant cypress wood, with volcanic rocks.

Changling fault depression is a basin of continental volcanic-sedimentary rocks, faulting is the key factor that controls volcanic activities and volcanic rock distribution.

Volcanic rock develops mainly in deep formation, the distribution shows that volcanic rock has the characteristics of multi-stages and multi-times and multi-cycles.

A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.

The Xiaban gold deposit is located in centre Fujiang gold ore belt, occurring in Jurassic high volcanic rock distribution area, as epithermal type gold deposit associated with sub-volcanic rock.

The main rock type of the volcanic rock is trachyandesite with small amounts of trachyte, basaltic-trachyandesite and leucite basaltic-trachyandesite.

There were several major types of fractures of the volcanic rock reservoirs: primary fracture and secondary fracture.

This method can be spread in volcanic rock area in west Liaoning where is lack of water.

Theregion's unpredictable geology and its volcanic rock prevented engineers from using boring machines, forcing them to blast and dig their way under the Tsugaru Strait.

The caldera is about 6.5 kilometers [4 miles] across. It formed following an eruption, when the emptied magma chamber collapsed under the weight of volcanic rock above it.

Obsidian, a form of volcanic rock valued for its strength and durability, was an important resource for ancient Mesoamerican cultures including the Zapotec and Maya.

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.

The concentric stone circles that make up Stonehenge, 130 km southwest of London, consist of giant sandstone blocks and smaller bluestones-volcanic rock of a bluish tint with white flecks.

The dry land of the continents consists mostly of granite and other light silicate minerals, while the ocean floors are made up mostly of a dark, dense volcanic rock called basalt.

Crystal twinning patterns in a leucite crystal from volcanic rock, observed in polarized light by Dr. Michael M. Raith of the Steinmann Institut, University of Bonn, Bonn, Germany. Dr.

The main rocks types of the late Jurassic volcanic rocks in Genhe terrain, Daxinganlin are volcanic lava and volcanic rubbishy rocks.

The volcanic rocks resulted from upper mantle in Mesozoic group, and volcanic rocks from lower crust in Palapene system.

Mesozoic volcanic rocks are widely distributed in the East of China, which is an important part of the Circum Pacific volcanic zone.

The volcanic rocks thousands meters in thickness serve as the ore source for the metallization.

The protoliths of quartz jadeitite include metamorphosed granite, trondhjemite, acidic volcanic rocks and feldspar-quartz sandstone.

Dongying and Huimim depressions are rich in oil and gas resources and volcanic rocks are developed.

Is There a Neo-Tethys Subduction Record Earlier than arc volcanic rocks in the Sangri Group?

Indo-Chinese epoch hydrotherm replaced with carbonate and neutral-basic volcanic rocks of Jxlformation to derive skarns.

The silicic volcanic rocks of Carboniferous times has similar REE and trace elemental geochemistry as continental rhyolite.

The volcanic rocks from Hanxia and Hongliuxia in Jiuxi basin are considered to be resulted from Cenozoic tectonic events.

The studied acid volcanic rocks make up the main core part of the Baiyinchang volcanic dome structure, and is the ore-bearing rocks of Kuroko Baiyinchang-style ore deposit as well.

Most zircons separated from these volcanic rocks exhibit striped absorption and obvious oscillatory zoning, with a few ones showing the core-rim structure.

The volcanic rocks mentioned above show the geotectonic development of ChangningMenglian region experienced 2 "opening-closing" processes of the relict ocean basin.

The inner, outside contact zone between Himalayan ultra-epizonal syenite porphyry, Indosinian volcanic rocks of liparite porphyry-dacite series and strata is very advantageous to the metallogenesis.

Complicated lithology and abundant oil types of Carboniferous and Permian volcanic rocks cause the evaluation of oil and gas and water difficult in Santanghu basin.

The geochemical characteristics of the metabasalt agree with those of continental rift type volcanic rocks, forming a tectonic environment of the active shelf rift basin.