| 单词 |
gabbroid |
| 释义 |
gabbroid, a. Petrol.|ˈgæbrɔɪd|
[f. gabbro + -oid.]
Resembling gabbro; spec. belonging to the petrographic clan containing the gabbro and dolerite families, the rocks of which contain a high proportion of ferromagnesian minerals. Also as n. Hence gaˈbbroidal a.
1900Amer. Geologist XXVI. 151 (heading) Mineralogical and petrographic study of the gabbroid rocks of Minnesota, and more particularly of the plagioclasytes. 1904Chamberlin & Salisbury Geol. (1905) I. 432 The term gabbroids may be used to include the dark crystalline rocks in which the ferromagnesian minerals predominate, as the diorites, gabbros, dolerites, peridotites, etc. Ibid., The granitoids are usually acidic and the gabbroids usually basic. 1931Mineral. Abstr. IV. 401 Chemical analyses of the differentiation products of a gabbroidal magma, viz. diorite-pegmatite, diorite-aplite [etc.]. 1940Geogr. Jrnl. XCV. 394 The association of gabbroid and granophyric rocks. 1965G. J. Williams Econ. Geol. N.Z. x. 160/2 These lenses..were invaded by gabbroidal and peridotitic dykes conformably with the bedding planes. |
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
相关内容：
相关热词搜索：gabbroid英英词典英英释义英语词汇意思用法释义英语
字词 秽 释义 dirty 汉译英翻译词典收录405719条汉英翻译词条，基本涵盖了全部常用中文字词的......