斜長輝長巖 的英文怎麼說
中文拼音 [xiézhǎnghuīzhǎngyán]
斜長輝長巖
英文
anorthositic gabbro-
During diagenetic process, there may exist the fractional crystallization of clino - pyroxene, plagioclase, olivine and ti - fe oxide, and the accumulation of olivine. the alkalic - ultramafic dikes formed by low degree partial melting ( 3. 4 % ) of enriched mantle, consist of single olivine pyroxenolite, the dominating olivine fractionation is evident
成因上為富集地幔部分熔融作用的結果,但在成巖過程中也可能存在單斜輝石、斜長石、橄欖石和ti - fe氧化物等礦物的分離結晶作用。The mafic dikes also formed by the partial melting of enriched mantle, include gabbro, diabase ( distributing mainly in luxi ) and lamprophyres ( camptovogesite, odinite and hornblende lamprophyres ) ( mainly in ludong ). for all the rocks, crustal contamination was absent when magma emplaced. 2
基性脈巖主要包括輝長巖、輝綠巖(主要分佈在魯西地區)和煌斑巖(以斜閃煌斑巖為主,同時含部分拉輝煌斑巖和角閃煌斑巖) (主要分佈在魯東地區) ,都為富集巖石圈地幔部分熔融的產物。The lithologies of intrusive rocks were re - determined, for example, the rock previously named as diorite in southern area was renamed as gabbro, and the dike rock distributed along nnw as spessartite which was related to formation of the zhulazaga gold deposit to some extent
對礦區各類侵入巖重新釐定了它們的巖性特徵,如礦區東南部原閃長巖重新確定為輝長巖,確定nnw向分佈的脈巖為閃斜煌斑巖,且認為後者和朱拉扎嗄金礦的形成有一定的關系。Pyroxenite or anortlesite partings a fraction of an inch to 2 feet in thickness and tens of feet to hundreds of feet in length are also present in many seams.
在許多礦層中還見到輝巖或斜長巖夾層,厚幾分至2尺,長幾十到幾百尺。分享友人