Rocks Age

Decent Essays
According to,Wheeling, J. (2005, April 28). Retrieved February 07, 2018, from (Brian Rasmussen Follow, "Rasmussen Final+Paper+Green+Roofing", 2015)the main idea about this subject is to find out if rocks age and if they do how they age overtime. The age of the rock in years can be found by measuring the rate at which a parent element decays. The age of a rock in years is called its absolute age.You can look at the fossils the rock has too find what type of rock it is. There are three major types of rocks.Metamorphic, Sedimentary, and Igneous are the three types of major rocks
In conclusion the article says that the age of rocks can depend on what type of rock it might be and in what period this rock was at.

Another idea, by Nelson, Ken. (2018). Earth Science for Kids: Rocks, Rock Cycle, and Formation. Ducksters. Retrieved from ("Earth Science") is that the three types of rocks have different time period they were made at. This means that in order to find out the age of a rock you first need to identify what type of rock it is. Metamorphic rocks are formed by great heat and pressure.Igneous rocks are formed by volcanoes.Sedimentary rocks are
…show more content…
A third writer , Milligan, M. (1997, September 1). Glad You Asked: How Do Geologists Know How Old a Rock Is? Retrieved February 07, 2018, from ("Glad You Asked: How Do Geologists Know How Old a Rock Is?") states that in order to find a rocks age you need to first identify what type of rock is.Geologists generally know the age of a rock by determining the age of the group of rocks or formation that it is found in. Also the age of formations that is marked on a geologic calendar is known as the geologic time scale.You can tell the age of rocks by relative and absolute timing. Relative dating determines something from the past. Absolute dating determines the age on a specific object. The third author concludes that in order to find the age of a rock and its fossils you can use relative and absolute

Related Documents

  • Improved Essays

    Mary Goose Case Study

    • 510 Words
    • 3 Pages

    The analysis of the strata below the grave and the extraction of any datable artifacts is not possible with out greatly disturbing the cemetery. No logs or timbers are used in the grave except for possibly the coffin to which we do not have access, so dendrochronology can not be used. Radiocarbon dating requires an organic sample which, again, is not available and this absolute dating process is not effective for dates less than 400 years ago. Potassium-argon dating, which is used to date volcanic rocks 80,000 years old or older and uranium series dating, which is associated with travertine at least 10,000 years old are also not applicable. Fission-track dating analyzes the damage caused by the division of uranium-238 atoms to determine age.…

    • 510 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    What is radioactive dating? and how does it work? Radioactive, or Radiometric dating is a technique used to determine the age of objects such as rocks or carbon by using the decay rate of radioactive isotopes. It has been used since its invention by Ernest Rutherford in 1905. Radioactive decay itself, is the process by which an unstable atomic nucleus loses energy by emitting radiation.…

    • 1106 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    We have travelled to the Morrison formation which is dated to be 150 million years old and the rocks have grain of sizes between clay-sized and 1mm. The Morrison formation has inconsistent lateral thickness as it has thick layers and goes down to thin layers and has tightly compressed sediments. To why we believe the place was roamed with dinosaur as the Morrison formation is deposited near a flooded river or lake which have soft soil for dinosaur to implant dinosaur prints and the site itself is giving out radioactive which is from carnotite decays to uranium as the dinosaur bones are deposited with this element because its porous property, thus letting the ground water to passed through it. The Morrison formation have minerals such as hematite, quartz and clay and due to the iron and copper found in the formation, it causes paleosoil, a red-and-mauve-colored mudstone, to form in the middle section. The main event for the Morrison formation is the regression of sea level.…

    • 2002 Words
    • 9 Pages
    Improved Essays
  • Superior Essays

    The minerals that we could identify in this rock were Quartz, Muscovite, and Potassium Feldspar. The intrusive body of the rock is Dike and one of the things we got to get for evidence was that this rock has schist and it’s weak and that it also cools slowly and by the time crystals get to be bigger and bigger. Then Upper and Lower Adair Formation comes with being younger. The younger of this two is the Lower Adair Formation with 30 million years old. Its color is red with sediments of Sandstones abd also with Sedimentary Breccia.…

    • 1099 Words
    • 5 Pages
    Superior Essays
  • Decent Essays

    Nt1310 Unit 1 Lab Report

    • 372 Words
    • 2 Pages

    Name ____________________________________ Lab-Getting Trendy Pre-Lab 1. Which property uniquely identifies a chemical element? (hint: the element’s “social security number”) ______________________ 2. Describe the general characteristics of metals, nonmetals, and metalloids. ______________________________________________________________________________________________________________________________________________________ 3.…

    • 372 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    The Sierra Nevada is the longest mountain range in America and it lies partially within the parks. Along this range lies Mt. Whitney, at an elevated height of 14,491 feet and considered the tallest mountain within the lower United States. In Sequoia National Park, resides another prominent ridge of mountains called the Great Western Divide and it has been posed as the rival of the Sierran Crest. The topography and its gradual formation was the result of the uplift of the southern portion of the Sierra block over an elevation of 8,000 feet during the Plio-Pleistocene time (Konigsmark 2002).…

    • 864 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Liberty Hill Essay

    • 696 Words
    • 3 Pages

    The isotopic ages of metamorphism from the granitoids suggest that the oldest activity occurred in the northwest while the latest activity took place in the eastern portions of the piedmont. The Liberty Hill is one of a number of these granitoids where we see an early coarse grained facies intruded by a more recent fine grained facies. There is a gradational boundary present between these separate facies. The Liberty Hill has a total of three facies which differ both in minerology and texture.…

    • 696 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Stonehouse pond was observed to be igneous rock, with evidence of batholith, an igneous specific type of intrusion that spans for miles at a time. This is evident in figure 8. Various minerals and a grainy texture were also observed. Because of this, and identification of minerals such as quartz, as observed in figure 6, and orthoclase, in figure 9, this rock was concluded to be the igneous rock, granite. Granite forms when magma under the Earth slowly crystallizes.…

    • 545 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    St Peter Area Case Study

    • 1108 Words
    • 5 Pages

    The deposition of ordovician dolomite could have been formed from flooding with high sea levels. The melting of glaciers could have carved out the sides of the rocks and areas where there are bluffs that cause the rocks to cliff at a higher elevation. The quaternary alluvium is most likely deposited from where there was erosion of sedimentary rocks from the movement of water or wind erosion. The large boulder found at the Kasota Prairie was most likely brought in from a glacier. It is an erratic boulder meaning the material the boulder is made out of, does not match its surroundings.…

    • 1108 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    This makes the sandstone a mature sandstone. The sandstone is probably well rounded, well sorted, and well cemented if it is mostly made up of quartz and feldspar. Analysis of cross bedding and other sedimentary directional indicators imply that the formation was derived from a terrane consisting of igneous, high-grade metamorphic, and sedimentary rocks (Morey 1967). Morey’s study agress with what Ojakangas and Matsch put into the Minnesota’s geology book. Both of these studies state that the sandstone came from the weathering and erosion of the igneous and metamorphic rocks.…

    • 1579 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    Fox Hills Formation

    • 881 Words
    • 4 Pages

    On the first stop of our trail, we could see that the Pierre formation made up of shale on our right side. The Fox Hills formation made up of sandstones was visible to our left side. Both of the materials deposited in these two formation was estimated to be 72 million years ago. The contact between both the Pierre and Fox Hills was abrupt as it changes from to completely different type of rocks. Lying only above the Pierre formation was conglomerates or breccia.…

    • 881 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Gypsum Mine Observation

    • 917 Words
    • 4 Pages

    After the trip in lab the next week, we looked at the different rock types under the microscope and discovered…

    • 917 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    The Precambrian Time

    • 867 Words
    • 4 Pages

    Precambrian time covers the tremendous greater part of the Earth's history, beginning with the planet's creation around 4.5 billion years prior and finishing with the development of complex, multi celled life-shapes very nearly four billion years after the fact. The Precambrian is the most punctual of the geologic ages, which are set apart by various layers of sedimentary rock. Set down over a huge number of years, these stone layers contain a lasting record of the Earth's past, including the fossilized stays of plants and creatures covered when the silt were shaped. The Earth was at that point more than 600 million years of age when life started. The planet had cooled off from its unique liquid state, adding to a strong hull and seas made…

    • 867 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Paleolithic is the beginning part of what is known as the Stone Age, enduring for only about 2.6 million years, when the first stone tools were used. The Paleolithic Age, Greek meaning for “Old Stone”, is the period in the development of the modern man. During this time…

    • 1049 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Why Are Fossils Important

    • 389 Words
    • 2 Pages

    Fossils are considered essential for the study of biological evolution because they are important in creating a time frame for once living organisms. They are the only specimen that provide us with direct physical evidence of the existence of past life as well as showing us the proof of evolution through the changes of each fossil’s skeletal structure. Sometimes interpreting the sequence of evolution within a living creature is difficult as the full range of fossils may not have been found, meaning that we may not have been able to see the entire evolutionary process. Phylogeny, which is the biological change and evolutionary relationships is documented through the place of fossils in time. There are two main ways out finding out how old something:…

    • 389 Words
    • 2 Pages
    Improved Essays