Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1139/e98-060 |
Paleoclimatic changes during the Late Pleistocene-Holocene in Laguna Babicora, near the Chihuahuan Desert, Mexico | |
Ortega-Ramirez, JR; Valiente-Banuet, A; Urrutia-Fucugauchi, J; Mortera-Gutierrez, CA; Alvarado-Valdez, G | |
通讯作者 | Ortega-Ramirez, JR |
来源期刊 | CANADIAN JOURNAL OF EARTH SCIENCES
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ISSN | 0008-4077 |
EISSN | 1480-3313 |
出版年 | 1998 |
卷号 | 35期号:10页码:1168-1179 |
英文摘要 | The paleoclimatic variability of northern Mexico since the Late Wisconsinan is determined from sedimentological, geochemical, and stratigraphic studies of the lacustrine sequence of Laguna Babicora (29.4 degrees N, 107.7 degrees W; elevation 2100 m asl). Chronological control is based on 13 radiocarbon dates (6 from this study and 7 previously reported) from four stratigraphic profiles that cover a range from 16 342 to 2800 BP. Two major periods of increased humidity are recognized by lake-level variation during the Late Wisconsinan and early Holocene. The Late Wisconsinan humid period may be related to jet stream migration to southerly latitudes and the influence of the mobile polar high. This period has been identified in the sedimentary record of El Diablo profile with a radiocarbon date of 16 342 +/- 201 BP. The early Holocene humid period is recorded in Fl Diablo (10 976 +/- 115 BP) and Cane profiles (9614 +/- 130 BP). It is interpreted as a result of the Younger Dryas climatic anomaly characterized by a temperature decrease and cold paleoclimatic conditions similar to those for the Late Wisconsinan. The early Holocene was followed by an overall gradual drying that reached a maximum around 6000 BP, during the middle Holocene. For the late Holocene evidence of widespread erosion, sedimentation changes, flooded surfaces, and paleosoils indicates that Laguna Babicora was subjected to short-term climatic changes. |
类型 | Article |
语种 | 英语 |
国家 | Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000079398300008 |
WOS关键词 | SOUTHWESTERN UNITED-STATES ; NORTH-AMERICA ; CLIMATE ; LAKE ; WOODLANDS ; OCEAN ; TEXAS ; AGE ; BP |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
来源机构 | Universidad Nacional Autónoma de México |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/135491 |
作者单位 | (1)Univ Nacl Autonoma Mexico, Inst Geofis, Dept Geomagnetismo & Explorac Geofis, Mexico City 04510, DF, Mexico;(2)Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Func & Aplicada, Mexico City 04510, DF, Mexico;(3)Univ Autonoma San Luis Potosi, Fac Ingn, San Luis Potosi, Mexico |
推荐引用方式 GB/T 7714 | Ortega-Ramirez, JR,Valiente-Banuet, A,Urrutia-Fucugauchi, J,et al. Paleoclimatic changes during the Late Pleistocene-Holocene in Laguna Babicora, near the Chihuahuan Desert, Mexico[J]. Universidad Nacional Autónoma de México,1998,35(10):1168-1179. |
APA | Ortega-Ramirez, JR,Valiente-Banuet, A,Urrutia-Fucugauchi, J,Mortera-Gutierrez, CA,&Alvarado-Valdez, G.(1998).Paleoclimatic changes during the Late Pleistocene-Holocene in Laguna Babicora, near the Chihuahuan Desert, Mexico.CANADIAN JOURNAL OF EARTH SCIENCES,35(10),1168-1179. |
MLA | Ortega-Ramirez, JR,et al."Paleoclimatic changes during the Late Pleistocene-Holocene in Laguna Babicora, near the Chihuahuan Desert, Mexico".CANADIAN JOURNAL OF EARTH SCIENCES 35.10(1998):1168-1179. |
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