SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置The Mineral Quiz
照片搜索Photo GalleriesSearch by Color今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography


This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About DoleriteHide

Etymol: Greek doleros, 'deceitful,' in reference to the fine-grained character of the rock that makes it difficult to identify megascopically.
Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. It can include microgabbro, basalt, andesite, microdiorite and other rock types.

i. In the United States, a syn. of diabase

Ref: AGI

ii. In British and Australian usage: A medium grained mafic intrusive rock whose main components are calcic plagioclase and clinopyroxene and which is characterized by ophitic to subophitic texture; usually found in sills and dykes. The preferred term for what is called diabase in the United States. Of similar mineralogy to basalt and gabbro, and intermediate in grain size between them.

Compare with: diorite, trap.

Classification of DoleriteHide

Sub-divisions of DoleriteHide

Mineralogy of DoleriteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
PyroxeneA petrological term for Pyroxene Group.
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAn informal name for dark green to black amphiboles, mostly ferro-hornblende or ...
Feldspar > Alkali Feldspar > K FeldsparPotassium-dominant feldspars with unknown crystal symmetry and Al-Si ordering state.
Silica > QuartzSiO2

Age distributionHide

Recorded ages:
Phanerozoic : 219 ± 6 Ma to 6.53 ± 0.26 Ma - based on 5 recorded ages.

Synonyms of DoleriteHide

Internet Links for DoleriteHide URL:
Please feel free to link to this page.
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
版权所有© mindat.org1993年至2021年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2021.5.11 22:23:41 Page generated: 2021.4.30 11:46:30
Go to top of page