{"title":"Origin of chalcedony nodules in rhyolite from the Peloncillo Mountains, Hidalgo County, New Mexico","authors":"P. J. Modreski","doi":"10.58799/nmms-1995.175","DOIUrl":null,"url":null,"abstract":"A particularly intriguing occurrence of chalcedony nodules has recently been recognized in mid-Tertiary silicic volcanic rocks near the Arizona-New Mexico border in southwestern Hidalgo County, New Mexico. The occurrence is in the vicinity of Clanton Draw and Geronimo Pass, in the Coronado National Forest. The nodules formed within a late Oligocene, high-silica rhyolite lava flow (Rhyolite of Clanton Draw) along the north margin of the Geronimo Trail cauldron (McIntyre, 1988; Erb, 1979; and Charles Bryan, personal communication, 1995).","PeriodicalId":220529,"journal":{"name":"1995 New Mexico Mineral Symposium, Proceedings Volume","volume":"123 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1995 New Mexico Mineral Symposium, Proceedings Volume","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.58799/nmms-1995.175","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
A particularly intriguing occurrence of chalcedony nodules has recently been recognized in mid-Tertiary silicic volcanic rocks near the Arizona-New Mexico border in southwestern Hidalgo County, New Mexico. The occurrence is in the vicinity of Clanton Draw and Geronimo Pass, in the Coronado National Forest. The nodules formed within a late Oligocene, high-silica rhyolite lava flow (Rhyolite of Clanton Draw) along the north margin of the Geronimo Trail cauldron (McIntyre, 1988; Erb, 1979; and Charles Bryan, personal communication, 1995).
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