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Record #187005:

Endolithic lichens, rapid biological weathering and Schmidt hammer R-values on recently exposed rock surfaces: Storbreen glacier foreland, Jotunheimen, Norway / John A. Matthews, Geraint Owen.

Title: Endolithic lichens, rapid biological weathering and Schmidt hammer R-values on recently exposed rock surfaces: Storbreen glacier foreland, Jotunheimen, Norway / John A. Matthews, Geraint Owen.
Author(s): Matthews, John A.
Owen, Geraint.
Date: 2008.
In: Geografiska Annaler. Series A. Physical Geography. (2008.), Vol. 4 (2008)
Abstract: Investigates rate of biological weathering on recently exposed rock surfaces, including moraine ridges deposited by glacier in 1980s and 1990s. Aims to: measure effect of endolithic lichens (Lecidea auriculata) on rock hardness on boulder surfaces in 0-88 year age range; compare implied rate of biological weathering with that reported for older surfaces on Storbreen foreland and for biological and non-biological weathering in Arctic-alpine and polar environments more widely; assess implications for exposure-age dating based on Schmidt hammer and other methods. Reports R-values lowered by at least 20 units on surfaces exposed for 30-40 years, implying weathering rates 200-300 times faster than physico-chemical weathering alone.
Notes:

Geografiska Annaler. Series A. Physical Geography. Vol. 4 :287-297 (2008).

Keywords: 551.33 -- Glacial geology.
551.311.23 -- Weathering.
551.321 -- Glaciological methods and instruments.
550.93 -- Geochronology.
551.332.52 -- Moraines, terminal and recessional.
582.29 -- Lichens.
E7 -- Glaciology: glacial geology and ice ages.
(*2) -- Polar regions.
(211) -- Cold Regions in general.
(*3) -- Arctic regions.
(*58) -- Norway.
SPRI record no.: 187005

MARCXML

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100 1# ‡aMatthews, John A.
245 10 ‡aEndolithic lichens, rapid biological weathering and Schmidt hammer R-values on recently exposed rock surfaces :‡bStorbreen glacier foreland, Jotunheimen, Norway /‡cJohn A. Matthews, Geraint Owen.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2008.
300 ## ‡ap. 287-297 :‡bill., diags., table, map.
500 ## ‡aGeografiska Annaler. Series A. Physical Geography. Vol. 4 :287-297 (2008).
520 3# ‡aInvestigates rate of biological weathering on recently exposed rock surfaces, including moraine ridges deposited by glacier in 1980s and 1990s. Aims to: measure effect of endolithic lichens (Lecidea auriculata) on rock hardness on boulder surfaces in 0-88 year age range; compare implied rate of biological weathering with that reported for older surfaces on Storbreen foreland and for biological and non-biological weathering in Arctic-alpine and polar environments more widely; assess implications for exposure-age dating based on Schmidt hammer and other methods. Reports R-values lowered by at least 20 units on surfaces exposed for 30-40 years, implying weathering rates 200-300 times faster than physico-chemical weathering alone.
650 07 ‡a551.33 -- Glacial geology.‡2udc
650 07 ‡a551.311.23 -- Weathering.‡2udc
650 07 ‡a551.321 -- Glaciological methods and instruments.‡2udc
650 07 ‡a550.93 -- Geochronology.‡2udc
650 07 ‡a551.332.52 -- Moraines, terminal and recessional.‡2udc
650 07 ‡a582.29 -- Lichens.‡2udc
650 07 ‡aE7 -- Glaciology: glacial geology and ice ages.‡2local
651 #7 ‡a(*2) -- Polar regions.‡2udc
651 #7 ‡a(211) -- Cold Regions in general.‡2udc
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*58) -- Norway.‡2udc
700 1# ‡aOwen, Geraint.
773 0# ‡7nnas ‡tGeografiska Annaler. Series A. Physical Geography. ‡gVol. 4 (2008) ‡wSPRI-40621
916 ## ‡a2009/04/09 -- RF
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220929 ‡bRF