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  2. Surface exposure dating - Wikipedia

    en.wikipedia.org/wiki/Surface_exposure_dating

    Surface exposure dating is a collection of geochronological techniques for estimating the length of time that a rock has been exposed at or near Earth's surface. Surface exposure dating is used to date glacial advances and retreats, erosion history, lava flows, meteorite impacts, rock slides, fault scarps, cave development, and other geological events.

  3. Geochronology - Wikipedia

    en.wikipedia.org/wiki/Geochronology

    A series of related techniques for determining the age at which a geomorphic surface was created (exposure dating), or at which formerly surficial materials were buried (burial dating). [10] Exposure dating uses the concentration of exotic nuclides (e.g. 10 Be, 26 Al, 36 Cl) produced by cosmic rays interacting with Earth materials as a proxy ...

  4. Quaternary Geochronology - Wikipedia

    en.wikipedia.org/wiki/Quaternary_Geochronology

    Quaternary Geochronology is a peer-reviewed scientific journal addressing methods and results in the dating of samples from the Quaternary Period.. The journal's scope covers the principles of geochronological methods, their analytical procedures, and instrumentation, such as Luminescence dating, [1] Tephrochronology, [2] or Surface exposure dating. [3]

  5. Holocene glacial retreat - Wikipedia

    en.wikipedia.org/wiki/Holocene_glacial_retreat

    Surface exposure dating using the isotope 36 Cl was the primary means of dating boulders and terminal moraines in the Drangajökull area in Iceland. [3] Ages of erratic boulders found near the Leirufjörður valley and moraine range from 7-12 thousand years old. [3]

  6. Lichenometry - Wikipedia

    en.wikipedia.org/wiki/Lichenometry

    The map lichen (Rhizocarpon geographicum), the lichen most used in lichenometry. Lichenometry can provide dates for glacial deposits in tundra environments, lake level changes, glacial moraines, trim lines, palaeofloods, [9] rockfalls, seismic events associated with the rockfalls, [2] talus stabilization and former extent of permafrost or very persistent snow cover. [10]

  7. Luminescence dating - Wikipedia

    en.wikipedia.org/wiki/Luminescence_dating

    Most luminescence dating methods rely on the assumption that the mineral grains were sufficiently "bleached" at the time of the event being dated. For example, in quartz a short daylight exposure in the range of 1–100 s before burial is sufficient to effectively “reset” the OSL dating clock.

  8. One Knock. Two Men. One Bullet. - The Huffington Post

    projects.huffingtonpost.com/bryan-yeshion...

    A witness first saw the gun poking through a crack between the apartment door and the frame. There had been a knock and an eerie silence, then an attempt by two men to force the door open.

  9. Category:Geochronological dating methods - Wikipedia

    en.wikipedia.org/wiki/Category:Geochronological...

    Surface exposure dating This page was last edited on 10 September 2016, at 06:35 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...