Catastrophism vs Uniformitarianism and Relative Age Dating - ppt video online download
What is the difference between relative and absolute dating of rocks and fossils? . Relative dating tells us the age of the strata in relation to each other. The principle of uniformitarianism is used to date rocks based on the the the age of the sedimentary layer is calculated to be the thickness of. Relative-age dating compares past geologic events based on order of strata in the rock What is the link between uniformitarianism and absolute-age dating.
Whether it is earth's mass or animal life, the theory of uniformitarianism is constantly being challenged and now being questioned by evolutionary scientists, because of the evidence being discovered today.
Uniformitarianism is a theory that is in opposition to Creationism. Regarding the Earth's mass, Creationism relies upon the Scriptures, relating that God created the Heaven and the Earth: And God saw every thing that he had made, and, behold, it was very good. As Creationists consider the nature of the Earth's mass, it demonstrates that it is just right for it's gravity, yielding the proper amount and density of atmosphere to sustain life, and giving the livable pull upon objects and life forms for reasonable activity.
The weather systems upon the earth, dependent upon the sun's rays, the gravitational pull of the moon, and the tilt of the Earth, also interact with its gravitational force, giving seasons and moisture for sustaining life.
Massive upheavals on the Earth's mass, during and after the Genesis Flood, have changed the environment closer to that which we experience today.
- What is the link between uniformitarianism and absolute age dating
- What is the difference between absolute age and relative age of fossils?
- Catastrophism vs Uniformitarianism and Relative Age Dating
Venus has also undergone changes in its surface and structure, and although it has similar mass to Earth, its hot acid atmosphere, which rains lead is totally uninhabitable.
While Saturn is much more massive 95 times than Earth, its density is so thin that it would float on water. Yet its gravity is almost equal to Earth at sea level.
Its rings, however, are spreading, indicating that it is relatively young, not fitting into the patten that uniformitarianism demands, being contrary sound scientific discovery. There is nothing scientifically inconsistent with the Scripture's statement of God creating the Earth, but the stipulation of existing forces having operated uniformly the beginning, do not match up with many other scientific discoveries, which have taken place in recent times.
Once they know the order, a relative age can be determined for each layer. Sedimentary rocks form when new sediments are deposited on top of old layers of sediment.
As the sediments accumulate, they harden into layers called beds. The boundary between two beds is called a bedding plane. The law of superposition states that an undeformed rock layer is older than the layers above it and younger than the layers below it.
The principle of original horizontality states that sedimentary rocks left undisturbed will remain in horizontal layers. So, scientists can assume that sedimentary rock layers that are not horizontal have been tilted or deformed by crustal movements that happened after the layers formed.
Principle of Original Horizontality 12 The Rock Record Section 1 Principle of Original Horizontality, continued Graded Bedding In some cases, tectonic forces push older layers on top of younger ones or overturn a group of rock layers. So, scientists must look for clues to the original position of the layers.
What is the link between uniformitarianism and absolute age dating \ smena.info
One clue is the size of particles in the layers. In some environments, the largest particles of sediment are deposited in the bottom layers.
If larger particles are located in the top layers, the layers may have been overturned by tectonic forces. When sand is deposited, sandy sediment forms curved beds at an angle to the bedding plane. These beds are called cross-beds.
Scientists can study the shape of the cross-beds to determine the original position of the layers. Principle of Original Horizontality, continued 15 The Rock Record Section 1 Ripple Marks Ripple marks are small waves that form on the surface of sand because of the action of water or wind.
When the sand becomes sandstone, the ripple marks may be preserved.