{"title":"Gallery of Geology - The basalt of Broken Tank: an aphyric, ophitic basalt of the Rio Grande rift","authors":"R. Chamberlin","doi":"10.58799/nmg-v33n2.40","DOIUrl":null,"url":null,"abstract":"The photomicrograph below was made from a thin section of the “basalt of Broken Tank” (Chamberlin et al. 2002), a distinctive aphyric ophitic basalt in the Socorro, New Mexico, region of the Rio Grande rift. Geologic and chronologic data indicate the basalt of Broken Tank was erupted onto a gravelly piedmont slope near San Antonio about 8.5 m.y. ago and then flowed 12 mi northward into an intermittent lake basin (playa) near Socorro. Where interbedded in playa muds, the same 8.5 Ma ophitic basalt was initially called the “basalt of Bear Canyon” (Osburn and Chapin 1983), a formation name now abandoned (Chamberlin et al. 2002).","PeriodicalId":35824,"journal":{"name":"New Mexico Geology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Mexico Geology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.58799/nmg-v33n2.40","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
The photomicrograph below was made from a thin section of the “basalt of Broken Tank” (Chamberlin et al. 2002), a distinctive aphyric ophitic basalt in the Socorro, New Mexico, region of the Rio Grande rift. Geologic and chronologic data indicate the basalt of Broken Tank was erupted onto a gravelly piedmont slope near San Antonio about 8.5 m.y. ago and then flowed 12 mi northward into an intermittent lake basin (playa) near Socorro. Where interbedded in playa muds, the same 8.5 Ma ophitic basalt was initially called the “basalt of Bear Canyon” (Osburn and Chapin 1983), a formation name now abandoned (Chamberlin et al. 2002).
下面的显微照片是用“破槽玄武岩”(Chamberlin et al. 2002)的薄片制成的，这是新墨西哥州索科罗(Socorro)地区里约热内卢大裂谷地区的一种独特的葡萄酸玄武岩。地质和年代学数据表明，大约8.5英里前，Broken Tank的玄武岩在圣安东尼奥附近的山前斜坡上爆发，然后向北流12英里，流入索科罗附近的一个间歇湖盆(playa)。8.5 Ma的蛇伏玄武岩最初被称为“熊峡谷玄武岩”(Osburn and Chapin 1983)，这一地层名称现在已被废弃(Chamberlin et al. 2002)。
期刊介绍：
New Mexico Geology is a quarterly, peer-reviewed journal available by subscription. Articles of original research are generally less than 10,000 words in length and pertain to the geology of New Mexico and neighboring states, primarily for an audience of professional geologists or those with an interest in the geologic story behind the landscape. The journal also publishes abstracts from regional meetings, theses, and dissertations (NM schools), descriptions of new publications, book reviews, and upcoming meetings. Research papers, short articles, and abstracts from selected back issues of New Mexico Geology are now available as free downloads in PDF format. Back issues are also available in hard copy for a nominal fee.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
