کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4747011 | 1642073 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Early Cretaceous crustacean microcoprolites from Sierra de la Cara Cura, Neuquén Basin, Argentina: Taphonomy, environmental distribution, and stratigraphic correlation
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
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چکیده انگلیسی
A new Early Cretaceous association of crustacean microcoprolites from the southern Mendoza sector of the Neuquén Basin, includes Palaxius salataensis Brönnimann, Cros and Zaninetti, 1972; Palaxius caucaensis Blau, Moreno and Senff, 1995; and Favreina cf. F. belandoi Fels, 1997. This microcoprolite association occurs in the Vaca Muerta and Chachao Formations (upper Berriasian-lower Valanginian), but Palaxius caucaensis is the first record of crustacean microcoprolites in the Mulichinco Formation and its first occurrence in Lower Cretaceous deposits. Preservation of these microcoprolites is probably a consequence of the low mud-availability in the environment together with a reduced compaction and neomorphism during diagenesis. Crustacean microcoprolites occur in outer to middle ramp deposits, suggesting that they were transported as sand-size particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 49, May 2014, Pages 214-228
Journal: Cretaceous Research - Volume 49, May 2014, Pages 214-228
نویسندگان
D.A. Kietzmann, R.M. Palma,