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Flinn, Derek, Pentecost, Allan (1995) Travertine-cemented screes on the serpentinite seacliffs of Unst and Fetlar, Shetland. Mineralogical Magazine, 59 (395) 259-265 doi:10.1180/minmag.1995.059.395.10

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Reference TypeJournal (article/letter/editorial)
TitleTravertine-cemented screes on the serpentinite seacliffs of Unst and Fetlar, Shetland
JournalMineralogical MagazineISSN0026-461X
AuthorsFlinn, DerekAuthor
Pentecost, AllanAuthor
Year1995 (June)Volume59
Issue395
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_59/59-395-259.pdf+
DOIdoi:10.1180/minmag.1995.059.395.10Search in ResearchGate
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Mindat Ref. ID2642Long-form Identifiermindat:1:5:2642:4
GUID0
Full ReferenceFlinn, Derek, Pentecost, Allan (1995) Travertine-cemented screes on the serpentinite seacliffs of Unst and Fetlar, Shetland. Mineralogical Magazine, 59 (395) 259-265 doi:10.1180/minmag.1995.059.395.10
Plain TextFlinn, Derek, Pentecost, Allan (1995) Travertine-cemented screes on the serpentinite seacliffs of Unst and Fetlar, Shetland. Mineralogical Magazine, 59 (395) 259-265 doi:10.1180/minmag.1995.059.395.10
In(1995, June) Mineralogical Magazine Vol. 59 (395) Mineralogical Society
Abstract/NotesAbstractScrees on high serpentinite sea cliffs in Shetland have been internally cemented by deposits of brucite, hydromagnesite and aragonite since the last glaciation. These minerals have been deposited from solutions originating as rain (often contaminated with salt spray), which fell on the serpentinite screes and dissolved Mg and minor amounts of Ca from the more finely divided and powdery scree components. As the solutions filtered down through the screes they deposited cements in the form of spherulitic layers of brucite and hydromagnesite with minor amounts of aragonite. At sea level the Mg-rich solutions mingled with sea water impregnating the scree and there cementation within the scree took place by the crystallization of plush-type layers of aragonite on the serpentinite fragments.


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