0
What else can I help you with?
Abundant fossil evidence did not appear in the geologic record until what geologic era?
Abundant and diverse fossils first appeared in the Cambrian era, although there is fossil evidence throughout much of the Precambrian.
What percent of geologic time is represented by abundant fossil evidence?
The planet Earth is about 4,600 million years old. Fossil evidence becomes abundant in the geological record in the Cambrian Era, which was about 550 million years ago (when hard shelled animals appeared) Therefore (550/4600)*100 = roughly 12% of Geological time contains abundant fossil evidence. However, please note that (non abundant) fossil evidence goes back about 3600 million years, (3600/4600)*100 = roughly 73% of Geologic time.
What three things help scientist estimate geologic time?
The 3 main ideas are, 1. The rock record provides evidence of geologic events and forms of the past. 2. Processes observed on Earth in the present also acted in the past. and 3. Earth is very old and has changed over geologic time.
What is an example of geologic evidence?
This question is simply too general, but i'll give you the definition and an example of the geological evidence of Pangaea.Definition: evidence that geologically prove the existant of such theory inrelation to being of the past (on most occaisions)A geological example of evidence of the existant of Pangaea is how there are coal mines in Antarctica. Coal mines only form near the equator, therefore proving that continental shift was involved and that there was once a "Pangaea".
What is the largest subdivision of geologic time?
The longest in geological time is an Eon eg. Archeozoic Eon . Edit: there is also the supereon, which is usually composed of 2-3 eons.
What would be the best evidence to support a theory that rock layers from different areas are the same age?
geologic colums
Abundant fossil evidence did not appear in the geologic record until what geologic era?
Abundant and diverse fossils first appeared in the Cambrian era, although there is fossil evidence throughout much of the Precambrian.
What percent of geologic time is represented by abundant fossil evidence?
The planet Earth is about 4,600 million years old. Fossil evidence becomes abundant in the geological record in the Cambrian Era, which was about 550 million years ago (when hard shelled animals appeared) Therefore (550/4600)*100 = roughly 12% of Geological time contains abundant fossil evidence. However, please note that (non abundant) fossil evidence goes back about 3600 million years, (3600/4600)*100 = roughly 73% of Geologic time.
What is the main evidence that supports the geologic time scale?
Measured rates of erosion.
When did abundant fossil evidence appearing the geologic record?
540 Million years ago
Abundant fossil evidence did not appear in the geologic record until about?
The abundant fossil evidence appeared in the geologic record around 541 million years ago during the Cambrian period when complex organisms started to evolve. This sudden appearance of diverse life forms is known as the Cambrian explosion.
Is there any evidence of the flood?
There were many floods. Almost every geologic layer was caused by a flood.
About 88 percent of geologic time is represented by the time span called what?
The Precambrian Eon represents about 88 percent of geologic time on Earth. This eon includes all time prior to the Paleozoic Era and spans from the formation of the Earth about 4.6 billion years ago to the beginning of the Paleozoic Era around 541 million years ago.
What evidence do scientist use to place events on the geologic time scale?
they use major fossil records
How does scientific evidence support the theory of geologic evolution?
I am a geologist and I know of no theory of "geologic evolution". "Evolution" as defined by Darwin describes the origin of species based on the survival of the fittest. This certainly can not be applied to geological processes, although life is integral to geology.
Explain the evidence that supports the existence of Pangaea?
Evidence supporting the existence of Pangaea includes: Fossil evidence of similar species found on different modern continents. Rock formations and mountain ranges that match up when continents are rearranged. Paleoclimatic evidence, such as glacial deposits in regions that are now warmer. Similarities in geologic structures and ages of rocks across continents.
What provides evidence that geologic activity occurred in the past on Earth's Moon?
the presence of solidified lava flows on the Moon
