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Dating moraines

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Constraints on past ice volume change. Trimlines can therefore also be used to reconstruct past ice sheet thickness. Glacial geologists use this phenomenon to date glacial landforms, such as erratics or glacially transported boulders on moraines[7] or glacially eroded bedrock. Late Neogene to Quaternary environmental changes in the Antarctic Peninsula region:

Cosmogenic nuclide dating

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How can we date rocks?
Topographic shielding, for example by a nearby large mountain, also affects the production rate of cosmogenic nuclides. This is important for glacial geologists, as it means that surfaces that have had repeated glaciations with repeated periods of exposure to cosmic rays can still be dated, as long as they have had sufficient glacial erosion to remove any inherited signal. Sampling strategy is the most important factor in generating a reliable exposure age. Belanja Buku di Google Play Jelajahi eBookstore terbesar di dunia dan baca lewat web, tablet, ponsel, atau ereader mulai hari ini. How can we date rocks?
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