کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1753274 | 1522579 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biomarkers as paleoclimate proxies in peatlands in coastal high plains in Asturias, N Spain
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
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چکیده انگلیسی
Biomarkers have revealed the widespread occurrence of nonadecan-2-one (K19), a characteristic of Cantabrian peatlands, different periods of dominance by higher plants and bacterial triterpenoids and an alternance of humid and dry periods as reflected in the n-alkane ratios. A change from a more arboreous vegetation before 4000 cal. yr BP in the relatively dry warm climate of the Middle Holocene to a Sphagnum-herbaceous dominant vegetation typical of cooler wetter conditions is observed. The wet episode between 2200 and 3000 cal. yr BP has a widespread occurrence in the studied profiles, whereas other dry-wet episodes are only recorded in some peat deposits and may be associated with local conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Coal Geology - Volumes 116â117, 1 September 2013, Pages 270-280
Journal: International Journal of Coal Geology - Volumes 116â117, 1 September 2013, Pages 270-280
نویسندگان
V. López-DÃas, J. Urbanczyk, C.G. Blanco, A.G. Borrego,