干旱区生态环境知识资源中心(Arid): Climate and sea-level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia)

Arid

DOI	10.1111/sed.12948
	Climate and sea-level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia)
	Hallenberger, Maximilian; Reuning, Lars; Back, Stefan; Gallagher, Stephen J.; Iwatani, Hokuto; Lindhorst, Katja
通讯作者	Hallenberger, M (corresponding author), Rhein Westfal TH Aachen, Geol Inst, Energy & Mineral Resources Grp EMR, Wuellnerstr 2, D-52062 Aachen, Germany.
来源期刊	SEDIMENTOLOGY
ISSN	0037-0746
EISSN	1365-3091
出版年	2021-10
英文摘要	The continental shelf of Northwest Australia hosts an extensive tropical carbonate ramp that forms an important template for the interpretation of similar systems in the sedimentary record. Yet, little is known about its development from the middle to late Quaternary, a period of high frequency glacioeustatic changes in sea-level and climate. This research describes core and seismic-reflection data from a mid-ramp to outer ramp transect at the Northwest Shelf. Core material includes the upper 70 m of International Ocean Discovery Program Site U1461 (Expedition 356), which covers the last 500 kyr. During arid glacials, sedimentation is characterized by inorganically precipitated carbonates, including aragonite-needle mud and ooids. Ooids developed under shallow marine conditions on small-scale flat-topped platforms. Seismic and sedimentological evidence indicates that these platforms developed locally on top of the present-day mid-ramp and were typically only active during a single glacial period. Aragonite-needle mud precipitated (inorganically) in shallow-water areas. Much of these fine sediments were subsequently exported into deeper water where they mixed with pelagic carbonates. Humid interglacials are generally characterized by reduced sedimentation across the Northwest Shelf of Australia, resulting in the amalgamation of glacial lowstand deposits. Yet, substantial amounts of skeletal carbonates were deposited at the studied location during the Holocene and Marine Isotope Stage 11. These sediment accumulations are interpreted as a local feature caused by a decline in current energy. The study presented highlights a ramp system where climate is as important as sea-level in controlling carbonate deposition.
英文关键词	Aragonite-needle mud Australian Shelf distally steepened ramp lowstand shedding ooids Northwest Shelf
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000710005600001
WOS关键词	NORTHERN CARNARVON BASIN ; GREAT BAHAMA BANK ; CALCIUM-CARBONATE ; ISOTOPIC COMPOSITION ; INDIAN-OCEAN ; HIGH-ENERGY ; FACIES ; SEDIMENT ; GEOCHEMISTRY ; DELTA-C-13
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364684
作者单位	[Hallenberger, Maximilian; Back, Stefan] Rhein Westfal TH Aachen, Geol Inst, Energy & Mineral Resources Grp EMR, Wuellnerstr 2, D-52062 Aachen, Germany; [Reuning, Lars] CAU Kiel, Inst Geosci, Ludewig Meyn Str 10, D-24118 Kiel, Germany; [Gallagher, Stephen J.] Univ Melbourne, Sch Earth Sci, 253-283 Elgin St, Carlton, Vic 3053, Australia; [Iwatani, Hokuto] Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Div Earth Sci, Yoshida 1677-1, Yamaguchi 7538511, Japan; [Lindhorst, Katja] CAU Kiel, Inst Geosci, Otto Hahn Pl 1, D-24118 Kiel, Germany
推荐引用方式 GB/T 7714	Hallenberger, Maximilian,Reuning, Lars,Back, Stefan,et al. Climate and sea-level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia)[J],2021.
APA	Hallenberger, Maximilian,Reuning, Lars,Back, Stefan,Gallagher, Stephen J.,Iwatani, Hokuto,&Lindhorst, Katja.(2021).Climate and sea-level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia).SEDIMENTOLOGY.
MLA	Hallenberger, Maximilian,et al."Climate and sea-level controlling internal architecture of a Quaternary carbonate ramp (Northwest Shelf of Australia)".SEDIMENTOLOGY (2021).