definisi
troctolite jinis rock intrusive mafic. iku kasusun ateges Jumlah utama nanging maneko rupo olivine lan calcic plagioclase bebarengan karo pyroxene suntingan. iku anorthosite-sugih olivine, utawa sing relatif pyroxene-kurang saka gabbro
arkose punika rock sedimentary, khusus jinis sandstone ngemot paling sethithik 25% Feldspar
Sajarah
asal
-
france
panemu
christian Leopold von Buch
Alexandre brongniart
Etimologi
saka troklotit german, saka trōktēs greek, iwak segara (dijupuk dadi sejenis iwak)
saka wilayah Auvergne saka prancis digunakake dening geologist Alexandre brongniart french 1826 sing Applied istilah iki kanggo sawetara sandstones feldspathic
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, hard rock
awet rock, hard rock
kulawarga
group
plutonic
-
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock opaque