on April 14, 2022
What are the 3 types of seismic?
GeologyThere are three major kinds of seismic waves: P, S, and surface waves. What are the 4 types of seismic? Seismic Wave Motions—4 waves animated Body Waves – Primary (P) & Secondary (S) Waves. Surface Waves – Rayleigh & Love Waves. What are the types of seismic? Types of Seismic Waves The two main types
on April 14, 2022
What color is blue limestone?
GeologyThe Moleanos Blue is a limestone with a growing demand, in particular from markets like the UK or USA. This is light grey/bluish colored limestone, with a slight brownish tonality, medium grain and several brownish fine spots. Is blue limestone actually blue? Commercial originates in a clear, light bed of the stone and is bright
on April 14, 2022
What is the difference between absolute dating and relative dating give an example of each?
GeologyRelative dating does not offer specific dates, it simply allows to determine if one artifact, fossil, or stratigraphic layer is older than another. Absolute dating methods provide more specific origin dates and time ranges, such as an age range in years. What is the difference between relative dating and absolute dating example? Relative age is
on April 14, 2022
What does Proterozoic Eon mean?
GeologyWhat does the name Proterozoic eon mean? earlier life The Proterozoic Eon, meaning “earlier life,” is the eon of time after the Archean eon and ranges from 2.5 billion years old to 541 million years old. How would you describe Proterozoic eon? Introduction. The Proterozoic Eon is the most recent division of the Precambrian. It
on April 14, 2022
Where are most rift valleys located?
GeologyThe most extensive rift valley is located along the crest of the mid-ocean ridge system and is the result of sea floor spreading. Examples of this type of rift include the Mid-Atlantic Ridge and the East Pacific Rise. Where are rift valleys most likely to be found? A rift valley is a lowland region that
on April 14, 2022
How many water masses are there?
GeologyWhat are the different water masses? Water masses are generally distinguished not only by their respective tracers but also by their location in the Worlds’ oceans. Water masses are also distinguished by their vertical position so that there are surface water masses, intermediate water masses and deep water masses. How do you find water mass?
on April 14, 2022
What is goethite used for?
GeologyUsage. Its main modern use is as an iron ore, being referred to as brown iron ore. Goethite is an important component of ochre pigments, and has been heat-treated for use as a red pigment since Paleolithic times. Why is goethite important? Goethite is the source for the pigment known as yellow ochre; it is
on April 14, 2022
How are minerals formed by crystallization from magma?
GeologyMagma heats the water underground→ elements & compounds dissolve in hot water to form solutions→ the solutions follow cracks within the rock→ elements & compounds leave the solution during cooling and crystallize as minerals→ these minerals form a narrow channel or slab in the rock called a vein. What is formed from the crystallization of
on April 14, 2022
What do you call the end of a glacier?
GeologyWhat is the end of a glacier called? Terminus Terminus. The lower-most margin, end, or extremity of a glacier. Also called Toe, End or Snout. What are the parts of a glacier called? Glaciers have two main sections: the accumulation area and the ablation area. The accumulation area is where temperatures are cold and snow
on April 14, 2022
How does downwelling affect marine life?
GeologyFew benthic animals would survive such toxic conditions. In the most extreme cases, a lack of downwelling may lead to mass extinctions. Paleontologists have suggested that 250 million years ago, deep circulation slowed nearly to a stop, and the ocean began to stagnate. How do downwelling affect ocean life? In the most extreme cases, a