Category: Geology

What is slow fast change?

Asked by: Kate Nasby The changes which take place over a long period of time are called slow changes. Examples: Rusting of iron, formation of day and night, ripening of fruits, growing of trees are slow changes. The changes which take place in a short period of time are called fast changes. What is slow

Is it possible for California to fall into the ocean?

Asked by: Kate Nasby No, California is not going to fall into the ocean. California is firmly planted on the top of the earth’s crust in a location where it spans two tectonic plates. Can California fall into the ocean from an earthquake? For those of us who live in inland areas of Southern California,

What are the branches of oceanography?

Asked by: Jorge Pierson Traditionally, we discuss oceanography in terms of four separate but related branches: physical oceanography, chemical oceanography, biological oceanography and geological oceanography. What are the five 5 branches of oceanography? The study of oceanography is divided into these five branches: Biological oceanography. Chemical oceanography. Geological oceanography. Physical oceanography. Paleoceanography. What are the

What is abrasion in glacial erosion?

Asked by: Amanda Rogers As a glacier flows downslope, it drags the rock, sediment, and debris in its basal ice over the bedrock beneath it, grinding it. This process is known as abrasion and produces scratches (striations) in bedrock surface. What is a glacial abrasion? Glacial abrasion is the surface wear achieved by individual clasts,

Is there a big earthquake coming to Alaska?

Asked by: Nora Johnson When did Alaska have a 7.1 earthquake? On November 30, 2018, at 8:29 a.m. AKST (17:29 UTC), a magnitude 7.1 earthquake hit Anchorage in South Central Alaska.2018 Anchorage earthquake. Damage to the Glenn Highway Local date November 30, 2018 Local time 08:29:28 AKST Magnitude 7.1 Mww Depth 46.7 km (29.0 mi)

Where is the world’s water found?

Asked by: Donald Hands the oceans Where is the worlds water found? Earth’s water is (almost) everywhere: above the Earth in the air and clouds, on the surface of the Earth in rivers, oceans, ice, plants, in living organisms, and inside the Earth in the top few miles of the ground. Where does the world’s

What does intrusive igneous mean?

Asked by: Kirk Wallace In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. What is the meaning of intrusive igneous rock? Intrusive, or plutonic, igneous rock forms when magma is trapped deep

How do you determine cleavage?

Asked by: April Harris To determine the angle of cleavage, look at the intersection of cleavage planes. Commonly, cleavage planes will intersect at 60°, 90° (right angles), or 120°. Be cautious when you see a flat surface on a mineral – not every flat surface is a cleavage plane. How do you identify cleavage and

What would you be most likely to find at a divergent boundary between two pieces of continental crust?

Asked by: Jay Betoch A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge is an example of divergent plate boundariesplate boundariesIf two tectonic plates

How are U shaped and V shaped valleys formed?

Asked by: Suzanne Gerrans Valley glaciers carve U-shaped valleysU-shaped valleysU-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular. How are U-shaped valleys formed simple? Glaciers cut distinctive U-shaped valleys , or troughs, with a flat floor and steep sides. The

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