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What else can I help you with?
How does refraction help geologists determine what is below the surface of earth?
Refraction helps geologists determine subsurface structures by analyzing how seismic waves change direction as they pass through different geological materials. When these waves encounter layers of varying densities and compositions, their speed and angle of propagation change, creating a bending effect. By measuring the angles and travel times of refracted waves, geologists can infer the types and locations of materials beneath the surface, aiding in resource exploration and understanding geological formations. This technique is widely used in seismic surveys for oil, gas, and mineral exploration.
Who is the best geologist?
Your question is kind of broad since geology is comprised of such a wide spectrum of careers, but here are a few of the most renowned geologists in history: James Hutton - http://en.wikipedia.org/wiki/James_Hutton Charles Lyell - http://en.wikipedia.org/wiki/Charles_Lyell Alfred Wegener - http://en.wikipedia.org/wiki/Alfred_Wegener Here's a list of other famous geologists: http://en.wikipedia.org/wiki/List_of_geologists The majority of work that geologists perform today is based on the discoveries of these people. There are many different jobs that geologists perform today, but I'd say that the "best" geologists of today are those who dedicate their lives to the study of environmental sustainability and the prediction/prevention of geologic hazards. Geologists involved with the oil industry are generally the highest paid in the field, but some may not consider these to be the "best" geologists because of their affiliation with oil companies and how detrimental they are to the environment. Many of the best geologists today work for the U.S. Geological Survey (USGS). http://www.usgs.gov/
Which of the following is not a characteristic that geologists use to identify minerals A Fracture B Color c Streak D Softness?
Color is not a reliable characteristic that geologists use to identify minerals because it can vary widely among different specimens of the same mineral due to impurities. Instead, geologists typically rely on properties like fracture, streak, and hardness for more accurate identification.
How could geologists use fossil in rock layer B to date a rock layer in another location?
Geologists can use index fossils from rock layer B to correlate the age of the rocks in another location by matching the presence of these unique fossils. Index fossils are widely distributed and lived for a short period of time, making them useful for dating rock layers. By identifying the same index fossils in both rock layers, geologists can infer that they are of similar age.
What do scientists use index fossils for?
Geologists use index fossils to define and identify geologic periods.
What is the longest division of geologic time?
The oldest division of geologic time is the Precambrian, specifically the Archaean Eon from which the oldest rocks and fossils date. (The Hadean Eon preceded the Archaean, but no geologic records date from this time because the Earth was cooling from a molten state.)
Why are index fossils used as guides to determine the age of roc?
Index fossils are used as guides to determine the age of rock because they are species that were widely distributed, existed for a relatively short geological time, and are easy to identify. Their presence in rock layers allows geologists to correlate the age of those layers across different locations. By comparing the occurrence of index fossils in various strata, scientists can establish a relative timeline and better understand the geological history of an area. This method helps in dating rocks and understanding the environmental conditions of the time when the fossils were formed.
Remains of plants or animals used to correlate rock layers over large geographic areas?
Index fossils are used to correlate rock layers over large geographic areas. These fossils are commonly found in distinct layers and can be used to determine the relative ages of rocks in different locations. By identifying the same index fossil in different rock layers, geologists can establish correlations between widely separated areas.
What three problems arose from having different sources of paper currency?
Lack of standardization led to difficulties in assessing the value of different currencies. Exchange rates fluctuated widely, leading to uncertainty in financial transactions. Counterfeiting was more prevalent as it was harder to distinguish between authentic and fake currencies.
Where did Henry Hutson go?
There is no widely known figure named Henry Hutson. More information is needed to determine where this person went.
What do index fossils found in rock layers in different areas of the world indicate about that the rock layers formed?
Index fossils, which are fossils of organisms that lived during a specific geologic time and are widely distributed, indicate that rock layers found in different areas of the world were formed during the same time period. Their presence suggests that these layers are contemporaneous, allowing geologists to correlate rock strata across vast distances. This helps in reconstructing the geological history and understanding the Earth's past environments. The uniformity of index fossils across different regions implies similar ecological conditions at the time of their existence.
How do geologists use index fossils to determine rock age?
Oh, dude, so like, geologists use index fossils to figure out the age of rocks by looking at the specific types of fossils found in them. These fossils are like rock stars of the dating world because they only lived during certain time periods, helping geologists match up the rock layers with a specific era. It's like finding a vintage concert t-shirt in a thrift store and knowing it's from the '80s because of the band on it. So, yeah, index fossils are like the ultimate timekeepers for rocks.
