orthogneiss造句

• Granite from the Cambrian and Ordovician has turned into orthogneiss.
• East of the lakes are dark amphibolite, orthogneiss and mica quartz schist.
• The mountain made of Cretaceous Orthogneiss, and Tonalite.
• First " orthogneiss and similar metasedimentary rocks " implies that orthogniess is metasedimentary.
• The land is composed of paragneiss of amphibolite and orthogneiss dated 1 billion years.
• Mount Triumph is composed of old orthogneiss.
• The entire body of the orthogneiss is intensively foliated in a NW-SE fashion.
• Orthogneiss is derived from igneous rocks.
• The oldest rocks are from the Cambrian, possibly the Precambrian, and are orthogneiss and paragneiss.
• The flank of the mountain on the southwest side are made of Triassic Orthogneiss and Triassic to Permian Heterogeneous Metamorphic rock.
• The orthogneiss is made up of eye-shaped, subcentimeter-sized alakali feldspar porphyroclasts and is therefore an augengneiss.
• The protolith of the orthogneiss was once a porphyritic granitoid which was later on ( during the Variscan orogeny ) deformed plastically.
• The Balingup Complex consists primarily of metasedimentary paragneiss, granite orthogneiss, with minor layers of calc-silicate, ultramafic and ortho-amphibolite gneiss.
• The geology consists mainly of grey or light orange leucogranite and orthogneiss rich in biotite, sillimanite and cordierite with alternating bands of felsic and mafic material.
• Trondhjemite is common in Archean terranes occurring in conjunction with tonalite and granodiorite as the " TTG " ( tonalite-trondhjemite-granodiorite ) orthogneiss suite.
• But the only time you would use the word " orthogneiss " in a non-geological encyclopedia would be to differentiate gneiss that is not of sedimentary origins.
• Moving south along the trail, the 433 Ma Ordovician-Silurian Belle Cote Road orthogneiss is encountered, followed by another granite ( Proterozoic-Devonian in age ).
• Yet some radiometric datings using the argon-method find much earlier Tournaisian ages for the intrusion of the Estivaux granite and for the motions along mylonite zones within the Saut-du-Saumon orthogneiss.
• A Middle to 375 Ma Late Devonian granite is seen along the Cabot Trail between Ingonish and where it leaves the park near South Harbor, while a 403 Ma Early Devonian orthogneiss is exposed at Neils Harbour northward.
• The rockslide consisted of a progressive succession of smaller collapses and block failures involving first the lower and more competent orthogneiss, followed by retrogressive collapse of the highly jointed paragneiss above ( Schindler et al ., 1993 ).