on April 14, 2022
What is the layer of the mantle?
Regional SpecificsThe mantle is divided into several layers: the upper mantle, the transition zone, the lower mantle, and D” (D double-prime), the strange region where the mantle meets the outer core. The upper mantle extends from the crust to a depth of about 410 kilometers (255 miles). What is the layer mantle made of? silicate rocks
on April 14, 2022
Which sedimentary rock is formed by compaction and cementation of land derived sediments?
Regional SpecificsShaleShale = clastic; silicate; formed by compaction and cementation of MICROSCOPIC land derived sediments. Are sedimentary rocks formed from compaction and cementation? This process is called compaction. At the same time the particles of sediment begin to stick to each other – they are cemented together by clay, or by minerals like silica or calcite.
on April 14, 2022
Is Granite foliated?
Regional SpecificsGranitic Foliated Gneiss. Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. What type of rock is granite? Granite is an igneous rock that forms when magma cools relatively slowly underground. It
on April 14, 2022
What is a depositional sequence?
Regional SpecificsA depositional sequence is defined as a relatively conformable succession of genetically related strata bounded by subaerial unconformities or their correlative conformities. What is the sedimentary sequence? Sedimentary sequences are layers of rock which are derived from weathered rocks, biogenic (= of living organisms) activity, or precipitation from solution. What is transgressive sequence? A transgression
on April 14, 2022
Is Basalt A igneous sedimentary or metamorphic rock?
Regional Specificsextrusive igneous rockigneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt. Is basalt igneous or sedimentary or metamorphic? igneous rock What is Basalt?
on April 14, 2022
What’s an intrusive igneous rock?
Regional SpecificsIntrusive Igneous Rock Intrusive, or plutonic, igneous rock forms when magma remains inside the Earth’s crust where it cools and solidifies in chambers within pre-existing rock. The magma cools very slowly over many thousands or millions of years until is solidifies. What is intrusive igneous rock? Intrusive Igneous Rocks: Intrusive, or plutonic, igneous rock forms