{"title":"Andesites and their associates","authors":"Kent Brooks","doi":"10.1111/gto.70023","DOIUrl":null,"url":null,"abstract":"<p>Andesites are volcanic rocks with an intermediate silica content. They are a feature of mountain chains like the Andes, from which the name is derived, and island arcs. Andesite and its associates, such as basalt, dacite and rhyolite (which belong to the so-called calc-alkaline rock series), occur in zones where tectonic plates are subducting (converging, so that one plate is forced down under its opponent).</p>","PeriodicalId":100581,"journal":{"name":"Geology Today","volume":"42 3","pages":"154-160"},"PeriodicalIF":0.0000,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geology Today","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/gto.70023","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Andesites are volcanic rocks with an intermediate silica content. They are a feature of mountain chains like the Andes, from which the name is derived, and island arcs. Andesite and its associates, such as basalt, dacite and rhyolite (which belong to the so-called calc-alkaline rock series), occur in zones where tectonic plates are subducting (converging, so that one plate is forced down under its opponent).
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