A proposed GSSP for the base of the Middle Ordovician Series: the;Huanghuachang section, Yichang, China

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质调查局武汉地质调查中心

	A proposed GSSP for the base of the Middle Ordovician Series: the;Huanghuachang section, Yichang, China
	Wang, XF 5; Stouge, S ; Erdtmann, BD ; Chen, XH ; Li, ZH ; Wang, CS ; Zeng, QL ; Zhou, ZQ ; Chen, HM
刊名	EPISODES
	2005
卷号	28 期号:2 页码:105-117
ISSN号	0705-3797
英文摘要	The Huanghuachang section near Yichang, southern China meets the requirements of Global Stratotype Section and Point (GSSP) for the base of the Middle Ordovician Series and the yet-to-be-named third stage of the Ordovician System (or lower stage of Middle Ordovician Series). The conodont succession at the section is complete across the Lower to Middle Ordovician series boundary and several excellent phylogenetic lineages of Baltoniodus, Trapezognathus, Periodon, and Microzarkodina are represented. The definition of the base of the Middle Ordovician is proposed to be the first appearance datum (FAD) of Baltoniodus? triangularis in the section. It is followed closely by the FAD of Microzarkodina flabellum, which is taken as a reasonable proxy for the boundary. This level approximates the boundary between the lower and upper intervals of the Azygograptus suecicus graptolite Biozone, and nearly coincides with the base of the Belonechitina henryi chitinozoan Biozone. The proposed GSSP for the base of the international Middle Ordovician Series is located in a roadside exposure at the base of Bed (SHod) 16, 10.57 m above the base of the Dawan Formation in the measured Huanghuachang section near Yichang City, southern China. The same faunal succession is also recorded from the Chenjiahe (formerly Daping) section, 5 km to the north of the Huanghuachang section. The proposed boundary horizon can be recognized and correlated globally with high precision in both relatively shallow-water carbonate facies as well as in deep-water graptolite facies.
学科主题	地层学与地史学
WOS关键词	ARENIG ; ACRITARCHS ; CONODONTS ; BOUNDARY ; DISTRICT ; RUSSIA ; SWEDEN
WOS研究方向	Geology
语种	英语
出版者	INT UNION GEOLOGICAL SCIENCES
WOS记录号	WOS:000231010700004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37880]
专题	中国地质调查局武汉地质调查中心
作者单位	1.Yichang Inst Geol & Mineral Resources, Yichang 443003, Hubei, Peoples R China. 2.Univ Copenhagen, Geol Museum, DK-1350 Copenhagen, Denmark. 3.Tech Univ, Inst Angew Geowissensch, Berlin, Germany. 4.Xian Inst Geol & Mineral Resources, Xian 710054, Shangxi, Peoples R China. 5.中国地质调查局武汉地质调查中心
推荐引用方式 GB/T 7714	Wang, XF,Stouge, S,Erdtmann, BD,et al. A proposed GSSP for the base of the Middle Ordovician Series: the;Huanghuachang section, Yichang, China[J]. EPISODES,2005,28(2):105-117.
APA	Wang, XF.,Stouge, S.,Erdtmann, BD.,Chen, XH.,Li, ZH.,...&Chen, HM.(2005).A proposed GSSP for the base of the Middle Ordovician Series: the;Huanghuachang section, Yichang, China.EPISODES,28(2),105-117.
MLA	Wang, XF,et al."A proposed GSSP for the base of the Middle Ordovician Series: the;Huanghuachang section, Yichang, China".EPISODES 28.2(2005):105-117.