干旱区生态环境知识资源中心(Arid): Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)

Arid

DOI	10.5194/cp-17-1547-2021
	Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)
	Munier, Thomas; Deconinck, Jean-Francois; Pellenard, Pierre; Hesselbo, Stephen P.; Riding, James B.; Ullmann, Clemens, V; Bougeault, Cedric; Mercuzot, Mathilde; Santoni, Anne-Lise; Huret, Emilia; Landrein, Philippe
通讯作者	Munier, T (corresponding author), Univ Bourgogne Franche Comte, uB CNRS, UMR 6282, Biogeosci, 6 Blvd Gabriel, F-21000 Dijon, France. ; Munier, T (corresponding author), Sorbonne Univ, CNRS, UMR 7193, ISTeP, 4 Pl Jussieu, F-75005 Paris, France.
来源期刊	CLIMATE OF THE PAST
ISSN	1814-9324
EISSN	1814-9332
出版年	2021
卷号	17 期号:4 页码:1547-1566
英文摘要	Clay mineral and stable isotope (C, O) data are reported from the upper Sinemurian (Lower Jurassic) of the Cardigan Bay Basin (Llanbedr-Mochras Farm borehole, northwestern Wales) and the Paris Basin (Montcornet borehole, northern France) to highlight the prevailing environmental and climatic conditions. In both basins, located at similar palaeolatitudes of 30-35 degrees N, the clay mineral assemblages comprise chlorite, illite, illite-smectite mixed layers (R1 I-S), smectite, and kaolinite in various proportions. Because the influence of burial diagenesis and authigenesis is negligible in both boreholes, the clay minerals are interpreted to be derived from the erosion of the Caledonian and Variscan massifs, including their basement and pedogenic cover. In the Cardigan Bay Basin, the variations in the proportions of smectite and kaolinite are inversely related to each other through the entire upper Sinemurian. As in the succeeding Pliensbachian, the upper Sinemurian stratigraphic distribution reveals an alternation of kaoliniterich intervals reflecting strong hydrolysing conditions and smectite-rich intervals indicating a semi-arid climate. Kaolinite is particularly abundant in the upper part of the obtusum zone and in the oxynotum zone, suggesting more intense hydrolysing conditions likely coeval with warm conditions responsible for an acceleration of the hydrological cycle. In the north of the Paris Basin, the succession is less continuous compared to the Cardigan Bay Basin site, as the oxynotum zone and the upper raricostatum zone are either absent or highly condensed. The clay assemblages are dominantly composed of illite and kaolinite without significant stratigraphic trends, but a smectite-rich interval identified in the obtusum zone is interpreted as a consequence of the emersion of the London-Brabant Massif following a lowering of sea level. Following a slight negative carbon isotope excursion at the obtusum-oxynotum zone transition, a long-term decrease in delta C-13(org) from the late oxynotum-early raricostatum zones is recorded in the two sites and may precede or partly include the negative carbon isotope excursion of the Sinemurian-Pliensbachian Boundary Event, which is recognised in most basins worldwide and interpreted to signify a late pulse of the Central Atlantic Magmatic Province volcanism.
类型	Article
语种	英语
开放获取类型	Green Submitted, Green Accepted, gold
收录类别	SCI-E
WOS记录号	WOS:000677473000001
WOS关键词	CLAY MINERAL SEDIMENTATION ; CARDIGAN BAY BASIN ; SUB-ALPINE AREA ; ROBIN-HOODS BAY ; PARIS BASIN ; SEQUENCE STRATIGRAPHY ; CARBON-CYCLE ; ORGANIC-MATTER ; LEVEL FALL ; EVOLUTION
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368028
作者单位	[Munier, Thomas; Deconinck, Jean-Francois; Pellenard, Pierre; Bougeault, Cedric; Santoni, Anne-Lise] Univ Bourgogne Franche Comte, uB CNRS, UMR 6282, Biogeosci, 6 Blvd Gabriel, F-21000 Dijon, France; [Munier, Thomas] Sorbonne Univ, CNRS, UMR 7193, ISTeP, 4 Pl Jussieu, F-75005 Paris, France; [Hesselbo, Stephen P.; Ullmann, Clemens, V] Univ Exeter, Camborne Sch Mines, Penryn Campus, Penryn TR10 9FE, Cornwall, England; [Hesselbo, Stephen P.; Ullmann, Clemens, V] Univ Exeter, Environm & Sustainabil Inst, Penryn Campus, Penryn TR10 9FE, Cornwall, England; [Riding, James B.] British Geol Survey, Nottingham NG12 5GG, England; [Mercuzot, Mathilde] Univ Rennes 1, UR CNRS, UMR 6118, Geosci Rennes, Campus Beaulieu,CS 74205, F-35042 Rennes, France; [Huret, Emilia; Landrein, Philippe] Agence Natl Gest Dechets Radioactifs, Ctr Meuse Haute Marne, RD 960, F-55290 Bure, France
推荐引用方式 GB/T 7714	Munier, Thomas,Deconinck, Jean-Francois,Pellenard, Pierre,et al. Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)[J],2021,17(4):1547-1566.
APA	Munier, Thomas.,Deconinck, Jean-Francois.,Pellenard, Pierre.,Hesselbo, Stephen P..,Riding, James B..,...&Landrein, Philippe.(2021).Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway).CLIMATE OF THE PAST,17(4),1547-1566.
MLA	Munier, Thomas,et al."Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)".CLIMATE OF THE PAST 17.4(2021):1547-1566.