کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4468676 1622341 2007 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selected plant microfossil records of the terminal Cretaceous event in terrestrial rocks, western North America
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Selected plant microfossil records of the terminal Cretaceous event in terrestrial rocks, western North America
چکیده انگلیسی

Terrestrial or nonmarine rocks of western North America preserve a record of major disruption and permanent alteration of plant communities precisely at the K–T boundary — in the same rocks that preserve geochemical and mineralogical evidence of the terminal Cretaceous impact event. Plant microfossil records from many localities show abrupt disappearance of pollen species (= plant extinctions) closely associated with impact ejecta deposits containing iridium and shocked quartz. Localities discussed in detail in this review are Starkville South, Clear Creek North, Old Raton Pass, and Sugarite in the Raton Basin of Colorado and New Mexico; West Bijou in the Denver Basin, Colorado; Sussex in the Powder River Basin, Wyoming; and Pyramid Butte and Mud Buttes in the Williston Basin, North Dakota.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 255, Issues 1–2, 2 November 2007, Pages 22–34
نویسندگان
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