气候变化领域集成服务门户(CCPortal): Climatic control on magnetic mineralogy during the late MIS 6 - Early MIS 3 in Lake Chalco; central Mexico

CCPortal

DOI	10.1016/j.quascirev.2020.106163
	Climatic control on magnetic mineralogy during the late MIS 6 - Early MIS 3 in Lake Chalco; central Mexico
	Ortega-Guerrero B.; Avendaño D.; Caballero M.; Lozano-García S.; Brown E.T.; Rodríguez A.; García B.; Barceinas H.; Soler A.M.; Albarrán A.
发表日期	2020
ISSN	0277-3791
卷号	230
英文摘要	Sediments from Lake Chalco in central Mexico spanning from ca. 150 to 35 ka ago provide evidence of paleoclimatic variability in the North American tropics associated with the end of Marine Isotopic Stage (MIS) 6, the transition to the last interglacial (MIS 5.5, ca. 130-115 ka ago), and part of the last glacial (MIS 5.4 to early MIS 3, 115 to 35 ka ago). We applied a multiproxy approach based on the analysis of mineral magnetism, diatom assemblages and major elements geochemistry. The reconstructed paleoenvironmental history identify the end of the globally cool MIS 6 as wetter than present, with high lake level, and a subsequent change to drier climates at the onset of the last interglacial (ca. 130 ka). Large amplitude changes in most of the analyzed parameters from ca. 130 to 74 ka are approximately coincident with MIS 5 (130-71 ka). The amplitude of these changes decreases in MIS 4 (71-57 ka) and the early part of MIS 3 (57-35 ka). We proposed that the inferred climatic oscillations follow insolation variations during MIS 6 and part of MIS 5 (150-88 ka). Low summer and spring insolation and lower seasonality inhibited evaporation and favored high lake levels. Conversely, maxima in spring and summer insolation promoted dry conditions and low lake levels. The major wet-cold glacial and dry-warm interglacial relationship found in Lake Titicaca (Bolivia) and Lake Chalco records shows the sensitivity of high altitude tropical sites to climatic variability. © 2020 Elsevier Ltd
英文关键词	Interglacial(s); Magnetic properties; North America; Paleolimnology; Pleistocene
语种	英语
scopus关键词	Glacial geology; Incident solar radiation; Magnetic properties; Magnetism; Minerals; Paleolimnology; Tropics; Climatic oscillations; Climatic variability; Interglacial(s); Magnetic mineralogy; Marine isotopic stages; Multiproxy approach; North America; Pleistocene; Lakes; interglacial; Last Glacial Maximum; Last Interglacial; magnetic property; marine isotope stage; mineralogy; paleoclimate; paleolimnology; Pleistocene; reconstruction; seasonal variation; seasonality; Bolivia; Lake Chalco; Lake Titicaca; Mexico [North America]; Bacillariophyta
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151594
作者单位	Universidad Nacional Autónoma de México, Instituto de Geofísica, Ciudad de México, 04150, Mexico; Universidad Nacional Autónoma de México, Posgrado en Ciencias de la Tierra, Ciudad de México, 04150, Mexico; Universidad Nacional Autónoma de México, Instituto de Geología, Ciudad de México, 04150, Mexico; University of Minnesota Duluth, Large Lakes Observatory and Department of Geological Sciences, Duluth, MN 55812, United States
推荐引用方式 GB/T 7714	Ortega-Guerrero B.,Avendaño D.,Caballero M.,et al. Climatic control on magnetic mineralogy during the late MIS 6 - Early MIS 3 in Lake Chalco; central Mexico[J],2020,230.
APA	Ortega-Guerrero B..,Avendaño D..,Caballero M..,Lozano-García S..,Brown E.T..,...&Albarrán A..(2020).Climatic control on magnetic mineralogy during the late MIS 6 - Early MIS 3 in Lake Chalco; central Mexico.Quaternary Science Reviews,230.
MLA	Ortega-Guerrero B.,et al."Climatic control on magnetic mineralogy during the late MIS 6 - Early MIS 3 in Lake Chalco; central Mexico".Quaternary Science Reviews 230(2020).