ultrabasic
1ultrabasic — “+ adjective Etymology: International Scientific Vocabulary ultra + basic : extremely basic : very low in silica and rich in ferromagnesian minerals ultrabasic igneous rocks peridotite is ultrabasic …
2ultrabasic — adjective Etymology: International Scientific Vocabulary Date: 1881 extremely basic; specifically very low in silica and rich in iron and magnesium minerals • ultrabasic noun …
3ultrabasic rock — ultrabazinė uoliena statusas T sritis chemija apibrėžtis Magminė uoliena, turinti iki 40% SiO₂. atitikmenys: angl. ultrabasic rock rus. ультраосновная порода …
4ultrabasic — /ul treuh bay sik/, adj. (of rocks) containing iron and magnesium, with little or no silica. Also, ultramafic. [1890 95; ULTRA + BASIC] * * * …
5ultrabasic — adjective ultramafic …
6ultrabasic — ul·tra·basic …
7ultrabasic — ul•tra•ba•sic [[t]ˌʌl trəˈbeɪ sɪk[/t]] adj. gel pet (of rocks) containing iron and magnesium, with little or no silica • Etymology: 1890–95 …
8ultrabasic rock — /ʌltrəˌbeɪsɪk ˈrɒk/ (say ultruh.baysik rok) noun a rock which contains less silica than basic rock; rock containing less than 45 per cent of silica …
9Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
10Nabalamprophyllite — General Category Sorosilicate Chemical formula Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} Crystal symmetry Monoclinic, P2/m …
