i have no clue what it is and i looked all over the place and i still don't know the answer please help me and tell me what it is.
2007-03-17 08:05:37 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
I think the question is asking you what type of rock (igneous, sedimentary or metamorphic.)
Logically, igneous will hold less fossils because these types of rocks are formed under intense heat. The heat burns the fossils away.
Metamorphic rocks are formed with intense heat and pressure, so the heat burns the fossils away as well.
The only logical answer left is sedimentary rocks, which preserve the rock because it is formed with just pressure, which is often not enough to break the fossil.
The answer is sedimentary rocks.
2007-03-17 08:13:06 · answer #1 · answered by tk_pinna 2 · 2⤊ 0⤋
Fossils variety in sedimentary rocks, exceedingly shale and limestones yet each and every so often in sandstones additionally. As those sediments (that have been later hardened into rocks) have been shaped, they trapped animal and flowers. If the character of the rock's formation would not permit the protection of former life (because of the sluggish velocity of deposition or the ambience of deposition includes too lots oxygen), no fossils would be preserved because of the fact the ineffective animal or plant will decompose earlier being coated. in specific cases fossils could be cutting-edge in weakly metamorphosed rocks, having been replaced from a sedimentary discern rock, yet those fossils are often poorly preserved.
2016-12-19 07:41:23 · answer #2 · answered by ? 4 · 0⤊ 0⤋
your first answer is on the mark in a broad sense. I'll get a little more specific.
The key to fossil preservation is rapid burial and low oxygen environment. This is usually found underwater. Traditionally the best luck in finding fossils is in the environment that produces Chemical sedimentary rocks (predominantly limestones) and the very fine clastic sedimentary rocks (siltstones and mudstones).
2007-03-17 08:16:40 · answer #3 · answered by permh20 3 · 2⤊ 0⤋
SEDIMENTary.
The plants and animals sit in the SEDIMENT and are compressed between the layers leaving images.
In igneous rock the plants and animals would be burned up.
In metamorphic the pressure would eliminate any traces of an image such as a leaf, bone or footprint.
.
2007-03-17 09:34:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋