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Radiometric Dating: more books (57)

Physical properties and radiometric age estimates of surficial and fracture-fill deposits along a portion of the Carpetbag Fault system, Nevada Test Site, Nye County, Nevada by R. R Shroba, 1988
Thermal springs and wells and radiometric ages of rocks in the Santa Rosa quadrangle, California by Frederic R Kelley, 1983
Louisiana's archaeological radiometric database (Special publication of the Louisiana Archaeological Society) by Charles R McGimsey, 2001
Radiometric ages of rocks in the San Bernardino quadrangle, California: Scale 1:250,000 by Edward J Bortugno, 1986
A radiometric study of rocks in three selected drainage basins in the spruce pine area, North Carolina (DP) by Joan M Galipeau, 1977
New radiometric ages related to alteration and mineralization in the vicinity of Yucca Mountain, Nye County, Nevada (Open-file report) by Edwin H McKee, 1993
Radiometric age determinations (Geological Survey report / Geological Survey of Victoria) by D. A McKenzie, 1984
Lecture notes, fundamentals of radiometric geochronology by H Baadsgaard, 1976
Radiometric ages of rocks in south-central Alaska and western Yukon Territory (Reports-Open file series - United States Geological Survey) by Shawn V Dadisman, 1980
Radiometric ages of selected Hawaiian corals (University of Hawaii) by Dale Alden Hammond, 1971
Petrography and radiometric ages for selected rocks from the Livengood quadrangle, Alaska (SuDoc I 19.76:97-484-D) by C. Dean Rinehart, 1997
Radiometric ages in the Santander massif, Eastern Cordillera, Colombian Andes (Project report : Colombia investigations) by Richard Goldsmith, 1971
Compilation of radiometric age dates for Arizona by Stanley B Keith, 1976
Radiometric ages of rocks in the Chico quadrangle, California: Scale 1:250,000 by G. J Saucedo, 1986

lists with details

A Radiometric Dating Resource List - Large Annotated Directory Of Internet Resou
Geochronology Working Group at Vienna University (Popularity ) Uses radiometric dating and classical geochronological methods to constrain the timing of
http://www.sciencecentral.com/site/505791
Direct Radiometric Dating Of Hydrocarbon Deposits Using Rhenium-Osmium Isotopes
Direct radiometric dating of Hydrocarbon Deposits Using RheniumOsmium Isotopes. David Selby1,2* and Robert A. Creaser1. Rhenium-osmium (Re-Os) data from
http://www.sciencemag.org/cgi/content/abstract/308/5726/1293

Extractions: Jump to: Page Content Section Navigation Site Navigation Site Search ... Account Information , or Site Tools Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be. Site Area Science Magazine Daily News Science Signaling SAGE KE Science Careers All HighWire Journals Terms Advanced Guest Alerts Access Rights My Account Sign In Readers Members Authors Librarians Advertisers Articles by Selby, D.
Early Primate Evolution: Isotopes Commonly Used For Radiometric Dating
Isotopes Commonly used for radiometric dating Dating Sample, Key Fission Product. Lutetium176, Hafnium-176, 37.8 billion, early Earth
http://anthro.palomar.edu/time/table_of_isotopes.htm

Extractions: (years) Dating Sample Key Fission Product Lutetium-176 Hafnium-176 37.8 billion early Earth Uranium-238 Lead-206 billion 10 million to origin of Earth Uranium-235 Lead-207 m illion 10 million to origin of Earth Rubidium-87 Strontium-87 48.8 billion 10 million to origin of Earth Potassium-40 Argon-40 billion 100,000 to origin of Earth Carbon-14 Nitrogen-14 Note: the half-life durations listed in the text sections of this tutorial are rounded off for
Radiometric Dating In Geology.
Identifiers, Carbon 14 Dating; Geochronology; radiometric dating. Record Type, Journal. Level, N/A. Institutions, N/A. Sponsors, N/A
http://www.eric.ed.gov/ERICWebPortal/recordDetail?accno=EJ237390
Scientists & Discovery, Radiometirc Dating, Museum Victoria, Australia.
This process is called radiometric or radioactive dating. radiometric dating is possible because the radioactive decay of large numbers of radioactive atoms
http://museumvictoria.com.au/scidiscovery/radioactivity/radio_dating.asp

Extractions: If the size of the text in this page is too small, please either turn javascript on or adjust the default text size of your browser. MUSEUM VICTORIA MELBOURNE MUSEUM SCIENCEWORKS IMMIGRATION MUSEUM ... Radioactive Decay Radiometric Dating Applications of Radiation What is Radiation? Radioactivity Radiometric Dating ... printer friendly page Radioactive decay allows geologists and physicists to measure the age of ancient fossils, rocks and even the Earth. This process is called radiometric or radioactive dating. Radiometric dating is possible because the radioactive decay of large numbers of radioactive atoms follows a predictable pattern. This predictability allows scientists to measure the age of an object if they can work out how many radioactive atoms were originally present. Two situations where we can do this involve Potassium-40 atoms and Carbon-14 atoms. All radioactive atoms decay to become a more stable kind of atom. The original radioactive atom is known as a parent isotope, while the atom produced by the decay process is known as a daughter isotope. Isotopes are different forms of the same element. For example Uranium-235 and Uranium-238 are both Uranium atoms with the same number of protons, but they have a different number of neutrons. The number used to identify the isotope refers to the total number of particles in the nucleus of each atom.
First Direct Radiometric Dating Of Archaean Stromatolitic Limestone
First direct radiometric dating of Archaean stromatolitic limestone. S. Moorbath*, P. N. Taylor*, J. L. Orpen, P. Treloar§ J. F. Wilson
http://www.nature.com/nature/journal/v326/n6116/abs/326865a0.html

Extractions: Here we report the first direct dating of the depositional age of a sedimentary carbonate rock using long-lived radioactive decay schemes. The Mushandike stromatolitic limestone, from the Masvingo (formerly Fort Victoria) greenstone belt of southern Zimbabwe , yields a Pb/Pb isochron age of 2,839 33 Myr. Published claims
Radiometric Dating: Radioactive Carbon, Potassium Argon, Uranium Lead
of three radioactive dating methods and their flaws. Radioactive Carbon, Potassium Argon and Uranium Lead methods are explained.
http://www.eadshome.com/RadiometricDating.htm

Extractions: There is no instrument available to measure the age of any substance. We can examine a rock, measure its composition and ratio of various elements, but we can never get a direct age. We must make assumptions based upon the chemical and mineral composition of a specimen before we can draw a conclusion about its age. These assumptions Uranium-Lead Dating: This dating method is used primarily on igneous rocks and is used to date objects thought to be quite old. Uranium-238 has a half-life of about 4.5 billion years. This means that if we could watch a sample of U-238 for 4.5 billion years, we would note that half of it would be gone, having decayed to Lead [Pb]-206.
IngentaConnect Radiometric Dating Of Sediment Cores From A
radiometric dating of sediment cores from a hydrothermal vent zone off Milos Island in the Aegean Sea. Authors Ugur A.1; Miquel J.C.; Fowler S.W.;
http://www.ingentaconnect.com/content/els/00489697/2003/00000307/00000001/art005
Problems With Radiometric And Genetic Dating Methods
Other types of radiometric dating (potassium argon, uranium, etc.) are based on similar assumptions of a known amount of element and isotope at the time of
http://www.scripturehistory.com/problemsradiometricgeneticdating.php

Extractions: Problems with Radiometric and Genetic Dating Methods: Assumption, Preconception, Collusion, and Circular Logic David Stewart, Jr. Assumptions of Radiometric Dating Radiometric and genetic dating methods are often claimed to be accurate, unbiased, and rigorously scientific tools for determining the age of fossils, rocks, and human remains. However, like all methodological tools, results of such dating methods are valid only when their assumptions are met. In Radiocarbon Dating: Tool or Magic Wand, Robert F. Helfinstine describes the assumptions of radiocarbon dating: The assumptions in which the [radiocarbon] dating is made are: 1. It is independent of time for 70,000 years.
Determining Absolute Ages By Radiometric Dating
Determining Absolute Ages by radiometric dating. 1. radiometric datingMeasuring the passage of time by the regular rate of decay of radioactive isotopes.
http://www.csmate.colostate.edu/cltw/cohortpages/viney/radiod.html

Extractions: Determining Absolute Ages by Radiometric Dating Radiometric Dating -Measuring the passage of time by the regular rate of decay of radioactive isotopes. Isotopes -Same element, but different number of neutrons. There are 350 different isotopes. Some isotopes are stable and others are radioactive. Parent Isotope -Radioactive isotope incorporated during crystal formation. Daughter Isotope -Stable decay product of parent isotope. Radioactive isotopes decay or change into a stable element at an exponential rate that does not change. The decay rate is not affected by heat, temperature, pressure, or chemical reactions. Half-life -The time it takes for half of the parent sample to decay to the stable daughter isotope. Potassium-40 decays to Argon-40. Use the following numbers to make a graph of Potassium-40 decay. Millions of years will be on the x-axis and the percent of potassium-40 will be on the y-axis. Data: (0 years, 100%), (1,300 million years, 50%), (2,600 million years, 25%), (3,900 million years, 12.5%), (5,200 million years, 6.25%). Make a best-fit curve for these numbers. Title and label your graph. You will use this graph to age date some rock sequences from the previous geologic cross sections. Back to History of Life or The Atomic Nucleus
Index-english
This laboratory at the University of Kiel provides radiometric dating and studies the use of stable and radioactive isotopes for archaeometry,
http://www.uni-kiel.de/leibniz/Leibniz-web_englisch/index-english.htm
Radiometric Dating - Conservapedia
radiometric dating is a method of determining the age of an artifact by measuring the amount of radioactive decay that has occurred. 1 radiometric dating
http://www.conservapedia.com/Radiometric_dating

Extractions: Jump to: navigation search Radiometric dating is a method of determining the age of an artifact by measuring the amount of radioactive decay that has occurred. Radiocarbon dating F t e k t No method exists for measuring time , except by measuring it as it is passing. Therefore, the age of an artifact must be calculated The basic principle in any dating method is to find a process that is occurring at a measurable rate and which is causing a change, measure the rate of that process, work out what state the artifact was in at the beginning of the process, observe what state it is in now, and to calculate how long the process at the measured rate would need to occur to effect that change. For example, to work out how long a candle has been burning, the following steps would be needed: Measure how long it takes the candle to burn down a given amount. Find out how long the candle was when it started burning. Measure how long the candle is now.
YouTube - Re: The Creationist Challenge Radiometric Dating
SINCE radiometric dating is DEPENDANT on the CONSTANCY of each isotopes halflife, and you have EXPLICITLY referenced the FEASIBILITY of radiometric dating
http://www.youtube.com/watch?v=D5J9zm-ykUo&feature=related
Radiometric Dating Methods
For example Carbon 14 is often the method of choice for scientists dating organic artifacts like wood, charcoal, bone, and teeth that are less than about
http://www.geocraft.com/WVFossils/DatingMethods.html

Extractions: The absolute age of a wide variety of rocks, fossils, and human artifacts can be determined by various laboratory procedures. Deciding which test to perform depends on the composition and believed approximate age of a particular specimen. For example Carbon 14 is often the method of choice for scientists dating organic artifacts like wood, charcoal, bone, and teeth that are less than about 40,000 years. Carbon 14 as an isotope exists in Earth's atmosphere at more or less constant concentrations relative to other carbon isotopes (there are exceptions, which published tables compensate for). When living tissue dies the Carbon 14 begins to slowly decay. Carbon 14 has a half-life of about 5,370 years , meaning that every 5,370 years about 50% of it decays to it's daughter product , the Carbon 12 isotope. After another 5,370 years only 25% of it remains, and so on. After 40,000 years there isn't enough of it left to accurately measure, so to date anything much older requires use of one or more of the other age-determination methods. The Carbon 14 test would be inappropriate for something like, say, granite because what we already know about granite is that it is too old and of the wrong composition for that test. But the granite may very well contain traces of the elements Uranium, Rubidium, or Potassium, and a test using one or more of those isotope procedures may well be appropriate and yield good results.
Eduardo - Re: Radiometric Dating Resource List Link Fix
Re radiometric dating Resource List link fix (Andy). Honestly, I am fully aware of being a loud mouthed, damn it, mostly drunken ranter.
http://www.scienceagogo.com/message_board3/messages/135.shtml

Extractions: Re: Radiometric Dating Resource List link fix (Andy) Honestly, I am fully aware of being a loud mouthed, damn it, mostly drunken ranter. But, BUT, whenever I have put a (not even very carefully thought out) question to Anyman or Sparrow they have studiously managed to ignore it, disappear for a bit and then come back as if nothing had happened. And frankly it's getting on my tits. Re: Radiometric Dating Resource List link fix Eduardo Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Andy Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Eduardo Re: Linguistic Mutilation Lesson #101 Amaranth Rose Re: Linguistic Mutilation Lesson #101 Eduardo Wintry Weather Amaranth Rose
Welcome To Virtual Age - Dating
Virtual dating contains two options as well as a demonstration version. System and technical requirements for Virtual dating
http://www.sciencecourseware.org/VirtualDating/

Extractions: Sorry, but you're not likely to find that special someone here, because this is an interactive exercise about Geologic Time . Here you'll learn how geologists and archeologists determine the ages of rocks and ancient artifacts. Please be patient as Java applets and associated images load into your computer. Your comments are welcome. Contact Us Virtual Dating contains two options as well as a demonstration version. Javascript is not enabled
Potassium-Argon Dating
PotassiumArgon dating Potassium-Argon dating is the only viable technique for dating very old archaeological materials. Geologists have used this method to
http://id-archserve.ucsb.edu/Anth3/Courseware/Chronology/09_Potassium_Argon_Dati

Extractions: http://id-archserve.ucsb.edu/Anth3/Courseware/Chronology/09_Potassium_Argon_Dating.html Potassium-Argon Dating Potassium-Argon dating is the only viable technique for dating very old archaeological materials. Geologists have used this method to date rocks as much as 4 billion years old. It is based on the fact that some of the radioactive isotope of Potassium, Potassium-40 (K-40) ,decays to the gas Argon as Argon-40 (Ar-40). By comparing the proportion of K-40 to Ar-40 in a sample of volcanic rock, and knowing the decay rate of K-40, the date that the rock formed can be determined. How Does the Reaction Work? Potassium (K) is one of the most abundant elements in the Earth's crust (2.4% by mass). One out of every 10,000 Potassium atoms is radioactive Potassium-40 (K-40). These each have 19 protons and 21 neutrons in their nucleus. If one of these protons is hit by a beta particle, it can be converted into a neutron. With 18 protons and 22 neutrons, the atom has become Argon-40 (Ar-40), an inert gas. For every 100 K-40 atoms that decay, 11 become Ar-40.
Dating Exhibit
dating techniques tend to be very important to archaeologists. Absolute dating is a way to get the date of something in the most accurate way possible.
http://www.mnsu.edu/emuseum/archaeology/dating/absolutedat.html

Extractions: Uranium-Thorium Dating Dating techniques tend to be very important to archaeologists. Absolute dating is a way to get the date of something in the most accurate way possible. Absolute dating which is also known as chronometrical dating has techniques that include: dendrochronology (study of tree ring patterns), Archaeomagnetism (based on fact that changes in the earth's magnetic field over time can be recorded as remnant magnetism in certain materials, e.g., baked clay), and radioactive dating such as radiocarbon/C-14 thermoluminescence , and potassium argon . These latter techniques are based on the principles of radioactive decay, the process by which radioactive isotopes break down into their decay products with a half-life specific to the isotope in question. Half life refers to the time taken for half the quantity of a radioactive isotope in a sample to decay. Carbon-14 Nitrogen-14 Potassium-40 Argon-40 Uranium-235 Lead-207 Uranium-238 Lead-206 Thorium-232 Lead-208 Rubidium-87 Strontium-87 There are many ways in which the absolute date of something can be achieved. Some of those methods are tree growth rings, coral growth cycles, and varves (annual clay sediment layers). These methods rely on the decay of the naturally occurring radiogenic isotopes shown in the table to the right.
Radioactive Dating
Certain radioactive lelments decay a predictable rates and may be used to date earth rocks and minerals.
http://earthsci.org/fossils/geotime/radate/radate.html

Extractions: Numerical dating, the focus of this exercise, takes advantage of the "clocks in rocks" - radioactive isotopes ("parents") that spontaneously decay to form new isotopes ("daughters") while releasing energy. For example, decay of the parent isotope Rb-87 (Rubidium) produces a stable daughter isotope, Sr-87 (Strontium), while releasing a beta particle (an electron from the nucleus). ("87" is the atomic mass number = protons + neutrons.

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