how old is the earth?

Answer 1

It has been proven that the earth is far less than millions, or billions of yrs old. It is actually aproximately 6000 yrs old.
For evidence of a young earth: GALAXIES; If spiral galaxies were billions of yrs old, the arm extending from their centers would have completely closed, causing the galaxies to lose their unique spiral shape. JUPITAR & MARS; These 2 planets radiate more heat than they recieve from the sun. If they were billions of yrs old, both planets would have reached equilibrium & no longer be able to lose more heat than they recieve. MOON & TIDES; the moon & earth are inextricably linked via their mutual gravitational pull. The moon's primary effect on the earth is that of tides. These 2ce daily tides inflict a barely perceptible drag on the earth's rotation, causing the earth's natural day to lengthen & the moon's orbit to recede. Because both gravitational forces & frition loss can be computed & predicted mathmatically, we can determine how close the moon could orbit before resulting in lunar destruction or eradication of life on earth. With this in mind, the earth/moon relationship could not possibly be more than 1 billion yrs old( evolution states it is many billion yrs old), & geological evidence indicates it is much younger. EVIDENCE OF YOUNG EARTH: OLDEST TREE; Bristle cone pine is approx. 4300 yrs. old- dated via tree rings. OLDEST REEF; is less than 4200 yrs. old. ( if the earth is billions of yrs old, why isn't there older living organisms?) POPULATION: In 1810 there were a billion ppl living on earth. In less than 200 yrs the population hit 6 billion. That fits the Biblical chronology perfectly as the current pop. started about 4400 yrs ago with Noah & his Fam. after the flood. The evoltionary time line would require not only a nearly exsistant growth rate but also 3 trillion deceased humans in the last billion yrs. DECLINING MAGNETIC FIELD: Studies over the past 140yrs show a consistant decay rate in the earth's magnetic field. At this rate , in a few as 25000 yrs ago, the earth would have been unable to support life because of the heat from the electrical current. THERE is so much more I could cover - email me if you want more. There is SALT IN THE OCEAN, EARTH'S SLOWING ROTATION , STRATA & THIR AGE, ICE CORE EVIDENCE, FAST ERODING NIAGRA FALLS, RAPID FOSSILIZATION & more but I'll stop here.

Answer 2

there is no exact date ( you can always ask the earth itself!) but since the sun is approximately 5 billion years old and the earth comes after the sun ti will be around 4 billion years ( it is proved that the earth IS older that 3 billion years)

Answer 3

the generally accepted age for the Earth and the rest of the solar system is about 4.55 billion years (plus or minus about 1%). This value is derived from several different lines of evidence.

Unfortunately, the age cannot be computed directly from material that is solely from the Earth. There is evidence that energy from the Earth's accumulation caused the surface to be molten. Further, the processes of erosion and crustal recycling have apparently destroyed all of the earliest surface.

The oldest rocks which have been found so far (on the Earth) date to about 3.8 to 3.9 billion years ago (by several radiometric dating methods). Some of these rocks are sedimentary, and include minerals which are themselves as old as 4.1 to 4.2 billion years. Rocks of this age are relatively rare, however rocks that are at least 3.5 billion years in age have been found on North America, Greenland, Australia, Africa, and Asia.

While these values do not compute an age for the Earth, they do establish a lower limit (the Earth must be at least as old as any formation on it). This lower limit is at least concordant with the independently derived figure of 4.55 billion years for the Earth's actual age.

The most direct means for calculating the Earth's age is a Pb/Pb isochron age, derived from samples of the Earth and meteorites. This involves measurement of three isotopes of lead (Pb-206, Pb-207, and either Pb-208 or Pb-204). A plot is constructed of Pb-206/Pb-204 versus Pb-207/Pb-204.

If the solar system formed from a common pool of matter, which was uniformly distributed in terms of Pb isotope ratios, then the initial plots for all objects from that pool of matter would fall on a single point.

Over time, the amounts of Pb-206 and Pb-207 will change in some samples, as these isotopes are decay end-products of uranium decay (U-238 decays to Pb-206, and U-235 decays to Pb-207). This causes the data points to separate from each other. The higher the uranium-to-lead ratio of a rock, the more the Pb-206/Pb-204 and Pb-207/Pb-204 values will change with time.

If the source of the solar system was also uniformly distributed with respect to uranium isotope ratios, then the data points will always fall on a single line. And from the slope of the line we can compute the amount of time which has passed since the pool of matter became separated into individual objects. See the Isochron Dating FAQ or Faure (1986, chapter 18) for technical detail.

A young-Earther would object to all of the "assumptions" listed above. However, the test for these assumptions is the plot of the data itself. The actual underlying assumption is that, if those requirements have not been met, there is no reason for the data points to fall on a line.

The resulting plot has data points for each of five meteorites that contain varying levels of uranium, a single data point for all meteorites that do not, and one (solid circle) data point for modern terrestrial sediments

more info
http://www.talkorigins.org/faqs/faq-age-of-earth.html

Answer 4

The best age for the Earth (4.54 Ga) is based on old, presumed single-stage leads coupled with the Pb ratios in troilite from iron meteorites, specifically the Canyon Diablo meteorite. In addition, mineral grains (zircon) with U-Pb ages of 4.4 Ga have recently been reported from sedimentary rocks in west-central Australia

Answer 5

Geologic time:
the extensive interval of time occupied by the Earth's geologic history. It extends from about 3.9 billion years ago (corresponding to the age of the oldest known rocks) to the present day. It is, in effect, that segment of Earth history that is represented by and recorded in rock strata.

Answer 6

4.6million years approximately. the origin of the earth's is bound up with that of the oceans and the earth its self.as the earth solidified 4,6 million years ago the lighter elements stayed on the out side while the heavier ones formed solids at the center. oxygen from carbon dioxide appeared about 3.5million years ago. that should be just about right

Answer 7

The oldest writing i comprehend approximately is from the babylon section with regards to the time Moses grow to be in Egypt. in accordance to the biblical tale the flood predates that so there does not be a destroy in it. Plus enormously much each way of existence and civilization has an account of an incredible flood in it incredibly is previous.

Answer 8

While I was taking Geology we had a debate about how old the Earth really was. We decided to go with 4.55 billion years because it is the most recognized answer.

Answer 9

Last I heard, approximately 4 billion years old.

Answer 10

MORE than 3 billion years