干旱区生态环境知识资源中心(Arid): Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene

Arid

DOI	10.1016/j.palaeo.2020.110092
	Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene
	Salocchi, Aura C.; Krawielicki, Julia; Eglinton, Timothy, I; Fioroni, Chiara; Fontana, Daniela; Conti, Stefano; Picotti, Vincenzo
通讯作者	Salocchi, AC (corresponding author), Univ Modena & Reggio Emilia, Dept Chem & Geol Sci, Modena, Italy.
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2021
卷号	562
英文摘要	Paleoenvironmental and paleoclimatic variations experienced by the Mediterranean region during the Miocene Burdigalian-Langhian interval have been investigated through analysis of biomarker signals (n-alkanes and glycerol dialkyl glycerol tetraethers, GDGTs) from slope mudstones of the northern Apennines (Marne di Vicchio Fm). Terrestrial signatures in marine sediments reflected by preserved long-chain n-alkanes with a identifiable odd-over-even carbon number predominance attest to the thermal immaturity of the sedimentary rock. Abundances of n-C-27, n-C-29 and n-C-31 alkanes, coupled with the carbon isotopic signatures of the n-C-31 homologue suggest that Mediterranean vegetation crossed a transition phase adapting to arid conditions that may favored a shift from woodland to wooded grassland during the Middle Miocene. This ecosystem evolution could have been favored by the passage from warm humid conditions to a warm drier climate, as indicated by GDGT-based TEX86 and BIT indexes. Strong similarities between these Mediterranean biomarker records and those from the Atlantic (DSDP Sites 94, 516, 608) imply a constant connection of the western Mediterranean to the Atlantic Ocean from similar to 19 Ma to similar to 14.5 Ma.
英文关键词	Plant wax biomarkers Microbial biomarkers Molecular proxies Paleoclimate Paleovegetation Neogene Apennines
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604584600027
WOS关键词	ISOPRENOID TETRAETHER LIPIDS ; SEA-SURFACE TEMPERATURES ; N-ALKANE DISTRIBUTIONS ; AGUA AMARGA BASIN ; NORTHERN APENNINES ; ORGANIC-MATTER ; CARBONATE PLATFORM ; MEMBRANE-LIPIDS ; VEGETATION CHANGE ; ISOTOPE RATIOS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348085
作者单位	[Salocchi, Aura C.; Fioroni, Chiara; Fontana, Daniela; Conti, Stefano] Univ Modena & Reggio Emilia, Dept Chem & Geol Sci, Modena, Italy; [Krawielicki, Julia; Eglinton, Timothy, I; Picotti, Vincenzo] Swiss Fed Inst Technol, Dept Earth Sci D ERDW, Zurich, Switzerland
推荐引用方式 GB/T 7714	Salocchi, Aura C.,Krawielicki, Julia,Eglinton, Timothy, I,et al. Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene[J],2021,562.
APA	Salocchi, Aura C..,Krawielicki, Julia.,Eglinton, Timothy, I.,Fioroni, Chiara.,Fontana, Daniela.,...&Picotti, Vincenzo.(2021).Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,562.
MLA	Salocchi, Aura C.,et al."Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 562(2021).