Amber from México: Coahuilite, Simojovelite and Bacalite. Issue 1618 (2014)

• Record Type: Journal Article
• Authors: Riquelme, Francisco; Ruvalcaba-Sil, José Luis; Alvarado-Ortega, Jesús; Estrada-Ruiz, Emilio; Galicia-Chávez, Martin; Porras-Múzquiz, Hector; Stojanoff, Vivian; Siddons, D. Peter; Miller, Lisa
• Is Part Of: MRS proceedings. Issue 1618:(2014)
• Page Start: 169
• Page End: 180
• Publication Date: 2014
• Subjects: geologic, -- chemical composition, -- organic; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/opl.2014.466
• Languages: English
• ISSNs: 0272-9172

Abstract

ABSTRACT: Coahuilite, a new variety of amber is described from the Late Cretaceous Olmos Formation (ca. 73 Ma.), Coahuila, north of México. This amber is totally distinct chemically and stratigraphically from the Miocene Chiapas amber (ca. 23-13 Ma.), Southern México, which according to mineral nomenclature is currently known as Simojovelite var. nov. Additionally, an emended description of Bacalite is proposed, based on the physicochemical analysis and geological record of a fossil resin recently recovery from the Late Cretaceous El Gallo Formation (ca. 73 Ma.), Baja California, northwestern México. The results are supported by characterization of such ambers using synchrotron-based Infrared (FTIR) microspectroscopy.