on April 15, 2022
Which aspects of the environment are biophysical elements?
GeologyThe biophysical environment is made up of four parts: the atmosphere, hydrosphere, lithosphere and biosphere. The atmosphere includes gases that are around the earth and everything that happens in them, such as heat from the sun, weather, smog and haze, climate and acid rain. What are the types of biophysical environment? The biophysical environment can
on April 15, 2022
What type of fossils are found in Virginia?
GeologyPelecypods, also called bivalves, are soft-bodied animals that secrete a hard shell with two sides, such as an oyster or clam. Pelecypods are abundant in the Cenozoic sedimentary deposits of Virginia’s Coastal Plain. Virginia’s state fossil is the bivalve Chesapecten jeffersonius, pictured here. What are most of the fossils found in Virginia of? Fossils can
on April 15, 2022
What are the three laws of relative dating?
GeologyThe Principle of Original Horizontality states that all rock layers were originally horizontal. The Law of Superposition states that younger strata lie on top of older strata. The Principle of Cross-Cutting Relationships states that intrusions and faults that cut across rock are necessarily younger than that rock. What are the 3 basic principles of relative
on April 15, 2022
What type of lava does a composite volcano have?
GeologyAcidic lavaAcidic lava, which is very viscous (sticky). Steep sides as the lava doesn’t flow very far before it solidifies. Alternate layers of ash and lava. What type of lava flow does a composite volcano have? Stratovolcanoes show interlayering of lava flows and typically up to 50 percent pyroclastic material, which is why they are
on April 15, 2022
What rocks are devoid of fossils?
GeologyIgneous rocks form from molten rock, and rarely have fossils in them. Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions. Which rock is devoid of fossils which hinders correlation of rocks? Most Mesozoic rocks are devoid of fossils; consequently this is the
on April 15, 2022
What type of metamorphic facies are associated with subduction of oceanic crust?
GeologyFor example, regions associated with subduction of oceanic material beneath either oceanic crust or continental crust are characterized by blueschist, greenschist, and eclogite facies rocks, whereas areas thought to reflect continent-continent collision are more typically distinguished by greenschist and amphibolite … Which type of metamorphic rock is associated with subduction of oceanic crust? Nearest to
on April 15, 2022
What are five examples of mass movements?
GeologyMass Movement Types Types Descriptions Flows occur when soil or rock acts like a liquid Slumps a slice of material that moves as one piece along a curved surface Landslides made up of unconsolidated rock; includes rockslides and avalanches Creeps material that moves slowly down gently sloping areas What are the 5 type of mass
on April 15, 2022
Is Earth science a branch of geology?
GeologyGeology is one branch of Earth science. Geology is the study of the origin, history, and structure of Earth. It also includes the study of the processes that shape Earth. A scientist who studies geology is called a geologist. Is geology part of Earth science? Also known as ‘geoscience’ or ‘Earth science’, geology is the
on April 15, 2022
How big is Tierra del Fuego?
GeologyIs Tierra del Fuego the largest island in the world? It forms the major landmass in an extended group of islands or archipelago also known as Tierra del Fuego. The island has an area of 47,992 km2 (18,530 sq mi), making it the largest island in South America and the 29th largest island in the
on April 15, 2022
What sedimentary rocks can change into marble?
GeologyWhen limestone, a sedimentary rock, gets buried deep in the earth for millions of years, the heat and pressure can change it into a metamorphic rock called marble. Which rocks are transformed into marbles? Solution(By Examveda Team) Limestone is transformed into marble. When limestone is subjected to the heat and pressure of metamorphism, marble, a