On the arrangement of the foliation and cleavage of the rocks of the North of Scotland | Zendy

D R Sharpe | Zendy

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On the arrangement of the foliation and cleavage of the rocks of the North of Scotland

Author(s) -

D R Sharpe

Publication year - 1854

Publication title -

abstracts of the papers communicated to the royal society of london

Language(s) - English

Resource type - Journals

eISSN - 2053-9134

pISSN - 0365-0855

DOI - 10.1098/rspl.1850.0052

Subject(s) - schist , foliation (geology) , geology , cleavage (geology) , gneiss , bedding , chlorite , mica , metamorphic rock , lamination , geochemistry , slates , mineralogy , geotechnical engineering , paleontology , chemistry , quartz , fracture (geology) , organic chemistry , layer (electronics) , horticulture , biology

The author applies the term,cleavage orlamination , to the divisional planes by whichstratified rocks are split into parallel sheets, independently of the stratification;foliation , to the division ofcrystalline rocks into layers of different mineral substances;slate , to stratified rocks intersected by cleavage; andschist , to foliated rocks only which exhibit no bedding independent of the foliation. He considers that no distinct line can be drawn between gneiss and mica schist, chlorite schist, &c., which pass from one into the other by insensible gradations; have the same geological relations, and foliation subject to the same laws.

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