What evidence is preserved to indicate that a large meteorite impact occurred at the end of the Mesozoic?

1 answer:

6 0

<span>High concentrations of iridium, of extraterrestrial origin, shocked quartz, evidence of fire, tsunami deposits, a fern spore spike, indicating colonization of disturbed landscapes by ferns, and the large Chicxulub impact structure in the Yucatan, dated to c 65 mya--about the same time as the end of the Mesozoic.</span>

You might be interested in

A geologist looks at a piece of igneous rock under a microscope and sees tiny crystals of olivine, pyroxene, and plagioclase fel

11111nata11111 [884]

Igneous rocks are formed as magma solidifies on the earth surface.

The process that might have formed this rock is:

A. melting underground, violent volcanic eruption, and solidification above ground

<h3>Igneous Rocks</h3>

Igneous rocks are known to be rocks that are formed when the magma melts underground and rises up to the earth surface via volcanic eruptions.

When they rise to the earth surface, they cool and solidify. This process will then result to the production of crystals.

Intrusive and extrusive rocks are formed in this process.

Learn more about igneous rocks on brainly.com/question/20538428

5 0

3 years ago

One way to reduce uncertainty is to increase the number of specific and general environmental forces that are interconnected. Be

oksano4ka [1.4K]

Answer:

<u>False</u>

Explanation:

The environment is dynamic whole understanding it imparts is quite essential as to reduce the uncertainties one does not need to increase the flow of general environment and specific forces.

This may create a reverse loop in the system and create hindrances in the environmental settings. As the environment is likely to create opportunities for the growth and development of man and his surroundings.

Because if one creates a positive change does not necessarily mean that the change may be positive such as a rise in temperature in summer or the reaction of the body etc. Taking the example of climate change that is the biggest system on earth is due to the man's impact on earth which has reacted to him.

6 0

3 years ago

2. How would unsorted piles of sub-angular to sub-rounded sediments

jenyasd209 [6]

Answer:

Transport of sediments causes them to become rounder as their irregular edges are removed both by abrasion and corrosion. Beach sand becomes highly rounded due to its endless rolling and bouncing in the surf.

6 0

2 years ago

Explain how an igneous rock like granite changes into a sandstone?

Leokris [45]

Answer:

Granite changes into sandstone by means of weathering and erosion. Through the passage of time, fragments of granite are broken down into smaller pieces, or sediments, which are transported and deposited at the bottom of the oceans or rivers. These particles form layers of sand and pebbles that undergo compaction and cementation to create sandstone.

3 0

3 years ago

Which geographic feature most aided England

Arlecino [84]

I believe the answer is number 2: Natural Harbors. The Industrial Revolution found success in Britain/England due to it's harbors and ports. I'm not sure how the weather and geographical conditions would have a major impact on the Industrial Revolution.

5 0

3 years ago