on April 15, 2022
Is Colorado on a fault line?
GeologyGeologic studies indicate there are about 100 potentially active faults Colorado and more than 400 earthquake tremors of magnitude 2.5 or higher have occurred in Colorado since 1870. Movement on active faults is responsible for large earthquakes. Colorado experienced a magnitude 6.5 earthquake on November 7, 1882. Is Colorado prone to earthquakes? Each time an
on April 15, 2022
What type of volcano is mole hill?
GeologyMole Hill is a rounded hill composed of basalt, a volcanic rock, formed during the Eocene epoch of the Paleogene period. It is the eroded remnant of what was an active volcano approximately 47 million years ago, making it one of the youngest volcanoes on the east coast of North America. Is Mole Hill an
on April 15, 2022
What are two types of glacial drift?
GeologyGlacial drift is divided into two main types, till and stratified drift. What are the different types of glacial drift? Glacial Drift: material deposited by a glacier. Two types of drift are Till (unsorted, unstratified debris deposited directly from ice) and Stratified Drift (sorted and stratified debris deposited from glacial meltwater). What are 2 glacial
on April 15, 2022
Is Ammonite an index fossil?
GeologyWith more than 10,000 species of ammonites known from the fossil record, this group is one of the most characteristic marine fossils of Cretaceous-age rocks around the world. Because they were so diverse, ammonites are considered an index fossil. What type of fossil is an ammonite? shelled cephalopods Ammonites were shelled cephalopods that died out
on April 15, 2022
How igneous rocks are formed step by step?
GeologyIgneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there. How igneous rock are formed? Igneous rocks (from the
on April 15, 2022
What is a normal fault?
GeologyNormal, or Dip-slip, faults are inclined fractures where the blocks have mostly shifted vertically. If the rock mass above an inclined fault moves down, the fault is termed normal, whereas if the rock above the fault moves up, the fault is termed a Reverse fault. What is a normal fault simple definition? normal fault –
on April 15, 2022
What rocks are created from felsic lava and magma?
GeologyFelsic magma is viscous and does not flow easily. Most felsic magma will stay deeper in the crust and will cool to form igneous intrusive rocks such as granite and granodiorite. What type of rock is associated with lava and magma? igneous rocks The two main categories of igneous rocks are extrusive and intrusive. Extrusive
on April 15, 2022
Is the Hawaii Volcano Still Erupting 2022?
GeologyAfter more than two years of quiescence, Kīlauea erupted again between December 2020 and May 2021 within Halemaʻumaʻu crater, where lava erupted from several vents boiled off a water lake that had been growing within the crater for more than a year, replacing it with a lava lake 229 metres (751 ft) deep. Is the
on April 15, 2022
What is the difference between Slate and Quartzite?
GeologyIs Slate the same as quartzite? Slate has a fine to medium grained surface texture. It renders a very graceful, natural finish to any building or home. Quartzite can be cleft like slate, or can be smooth and more similar to marble and granite in appearance. What is the difference between slate and quartz? Quote
on April 15, 2022
What are examples of divergent plate boundaries?
GeologyIn plate tectonics a divergent boundary is the boundary between two contiguous lithospheric plates that are separating. As the plates diverge, new material rises by magmatic processes from the Earth’s mantle, creating new lithosphere, so it is also called a constructive edge. The most active divergent edges are responsible for mid-oceanic ridges, where the mid-oceanic