Determining absolute ages by radiometric dating

Forensic Anthropology, Human Osteology, Human Paleopathology Courses, Lectures, Lessons, etc. Gandin; American Journal of Roentgenology 2003; 17-606, American Roentgen Ray Society Multimedia Paleoradiology Lessons (Text & Images). There are also many interactive ground plan maps, photos, paintings and drawings..." "..largest site from the Pre- and Protodynastic period (3800-3100 B. Shaw (Assistant Director of the excavations at Kommo); Hosted by the Art Department, Faculty of Arts & Sciences, University of Toronto Multimedia Kommos Excavation Crete (Text & Images). Kommos Excavation Crete For more information see the Art Department KYTHERA ISLAND PROJECT (KIP) - KIP Directors; C. Example of the "Kythera Island Project" Subject Categories & Subcategories include For more information see the Institute of Archaeology MINOAN CRETE - Author: Ian Swindale, Rethymno, Crete Multimedia Minoan Crete (Text, Images, Videos/Movies & Audio/Sound). The aim of this web site is to provide a well illustrated introduction to all the major and many of the minor archaeological sites of Minoan Crete,..." IRON AGE (CELTIC) COIN GUIDE INCLUDING THE OXFORD CELTIC COIN INDEX - Portable Antiquities Scheme, British Museum & the School of Archaeology, Oxford University Multimedia "Iron Age (Celtic) Coin Guide including the Oxford Celtic Coin Index" Database (Text & Images). The data presented in this web site represents the first stage of dissemination..." For more information see Materials and Technology; Research Projects; Institute of Archaeology or the School of Archaeology NOVUM INVENTORIUM SEPULCHRALE - KENTISH ANGLO-SAXON GRAVES AND GRAVE GOODS IN THE SONIA HAWKES ARCHIVE - Project Director: H. Ancient Middle America "...provides an introduction to Prehistoric Mexico, Guatemala, Belize, and Honduras.

PALEONTOLOGY - PALAEONTOLOGY Paleontology - Palaeontology Blogs, News, etc. For more information see the American Journal of Roentgenology or the American Roentgen Ray Society Archaeometry Databases THE LIMESTONE SCULPTURE PROVENANCE PROJECT DATABASE - The Limestone Sculpture Provenance Project; Sponsored by the International Center of Medieval Art (ICMA) Multimedia The Limestone Sculpture Provenance Project Database (Text & Images). The Limestone Sculpture Provenance Project Database "...samples of stone removed from a sculpture, monument or quarry are bombarded in a nuclear reactor to produce radioactive isotopes of elements present in the stone..." "... C.), Hierakonpolis the City of the Hawk is the most important site for understanding the foundations of Egyptian civilization..." For more information see Interactive Digs; Archaeology or the Archaeological Institute of America THE PYRAMIDS AND TEMPLES OF GIEZEH - R. For more information see The Pyramids and Temples of Giezeh or Ronald Birdsall's Home Page THE TOMB OF SENNEFERI - N. Broodbank (Mediterranean Archaeology, Institute of Archaeology, University College London) & E. Hamerow, Institute of Archaeology, School of Archaeology, University of Oxford Multimedia Novum Inventorium Sepulchrale - Kentish Anglo-Saxon Graves and Grave Goodsin the Sonia Hawkes Archive (Text & Images). Roufs, Anthropology, Department of Sociology & Anthropology, College of Liberal Arts, University of Minnesota, Duluth, Minnesota Multimedia Mesoamerican Course (Text & Images). Ancient Middle America broadly explores the nature, origin, and development of the great prehistoric cultures of these countries..." For more information see Tim Roufs' Home Page Databases JOHN MONTOGOMERY DICTIONARY OF MAYA HIEROGLYPHS (QUICKTIME & WINDOWS MEDIA PLAYER) - Author: John Montgomery, Hosted by the Foundation for the Advancement of Mesoamerican Studies, Inc. Available in English, Spanish & Maya Words and Syllables.

Proxy climate indicators include oxygen isotopes, methane concentrations, dust content, and other parameters..." LUMINESCENCE DATING TECHNIQUE - Luminescence Dating Laboratory, Department of Geology, Franklin College of Arts and Sciences, University of Georgia Multimedia Luminescence Dating Technique (Text & Images). Luminescence Dating "...particularly using optically stimulated luminescence (OSL), is revolutionizing Quaternary and archaeological science..." "...

There is now convincing evidence that many glacial, fluvial, aeolian, and even shallow marine sediments can be dated by OSL techniques.

BEFORE DECAY BEGINS, ALL OF THE MATERIAL IS RADIOACTIVEAFTER ONE HALF LIFE, HALF OF THE SAMPLE REMAINS RADIOACTIVE AND THE OTHER HALF IS STABLEAFTER EACH ADDITIONAL HALF LIFE, HALF OF THE REMAINING RADIOACTIVE MATERIAL DECAYSWe use several radioactive isotopes to find the absolute age of events and objects because we know their half life.The first thing we want to know to find the age of an object is to figure out how many half-lives have passed.To do this we need to know the amount of radioactive material remaining in the object.Because its half-life is so long it is useful for dating the oldest rocks on Earth, but not very reliable for rocks under 10 million years old. This is ten times the age of the Earth, so very little Rubidium has decayed at all.For this reason WE WILL NEVER CHOSE TO USE THIS ISOTOPE!

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