DJADOKHTA FORMATION CORRELATIVE STRATA IN CHINESE INNER-MONGOLIA - AN OVERVIEW OF THE STRATIGRAPHY, SEDIMENTARY GEOLOGY, AND PALEONTOLOGY AND COMPARISONS WITH THE TYPE LOCALITY IN THE PRE-ALTAI GOBI

IVPP-IR > 古低等脊椎动物研究室

	DJADOKHTA FORMATION CORRELATIVE STRATA IN CHINESE INNER-MONGOLIA - AN OVERVIEW OF THE STRATIGRAPHY, SEDIMENTARY GEOLOGY, AND PALEONTOLOGY AND COMPARISONS WITH THE TYPE LOCALITY IN THE PRE-ALTAI GOBI
	JERZYKIEWICZ, T ; CURRIE, PJ ; EBERTH, DA ; JOHNSTON, PA ; KOSTER, EH ; ZHENG, JJ
	1993-10-01
发表期刊	CANADIAN JOURNAL OF EARTH SCIENCES
卷号	30 期号:10-11 页码:2180-2195
文章类型	Article
摘要	Because the Bayan Mandahu redbeds of Inner Mongolia share similar sedimentary facies and fossil assemblages with the Djadokhta Formation of pre-Altai Gobi, the two units are interpreted as stratigraphic correlatives, both of Campanian age. Sedimentary facies indicate that the Bayan Mandahu redbeds were deposited in semiarid, alluvial to eolian environments. An assemblage of fossil vertebrates found in the Bayan Manduhu consists of ceratopsian, ankylosaurian, and theropod dinosaurs; turtles; crocodiles; and small lizards and mammals. Six different kinds of fossil vertebrate eggs are present. The most common fossil vertebrates occur in association with eolian deposits and are interpreted as the remains of autochthonous ''faunal'' components, many of which died in situ during sandstorm events. In contrast, rare and fragmentary specimens of large dinosaurs occur in coarse-grained alluvial deposits and are interpreted as the remains of allochthonous faunal components. The low diversity of this fossil assemblage and overall small to medium size of its constituents indicate a relatively stressed paleoenvironment, an interpretation which is compatible with our sedimentological conclusions. A diverse trace fossil assemblage is present and includes rhizoliths and endogenic traces. Endogenic traces are well preserved and typically associated with eolian deposits, suggesting that the deposits were at least seasonally damp and cohesive. The opinion that the Late Cretaceous Gobi Basin was a large inland lake, still advocated by some authors, cannot be maintained within the context of our sedimentologic and paleontologic data. In contrast with the perennial lacustrine sedimentation that was characteristic of the underlying Lower to lower Upper Cretaccous units in the Gobi Basin, the Bayan Mandahu redbeds and correlative Djadokhta Formation mark a pronounced shift toward eolian and intermittent lacustrine sedimentation in an increasingly arid climate.
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	DEPOSITS
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:A1993MW47200017
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7469
专题	古低等脊椎动物研究室
作者单位	1.ROYAL TYRRELL MUSEUM PALAEONTOL, DRUMHELLER T0J 0Y0, AB, CANADA 2.ONTARIO SCI CTR, DON MILLS M3C 1T3, ON, CANADA 3.ACAD SINICA, INST VERTEBRATE PALEONTOL & PALEOANTHROPOL, BEIJING 100044, PEOPLES R CHINA
推荐引用方式 GB/T 7714	JERZYKIEWICZ, T,CURRIE, PJ,EBERTH, DA,et al. DJADOKHTA FORMATION CORRELATIVE STRATA IN CHINESE INNER-MONGOLIA - AN OVERVIEW OF THE STRATIGRAPHY, SEDIMENTARY GEOLOGY, AND PALEONTOLOGY AND COMPARISONS WITH THE TYPE LOCALITY IN THE PRE-ALTAI GOBI[J]. CANADIAN JOURNAL OF EARTH SCIENCES,1993,30(10-11):2180-2195.
APA	JERZYKIEWICZ, T,CURRIE, PJ,EBERTH, DA,JOHNSTON, PA,KOSTER, EH,&ZHENG, JJ.(1993).DJADOKHTA FORMATION CORRELATIVE STRATA IN CHINESE INNER-MONGOLIA - AN OVERVIEW OF THE STRATIGRAPHY, SEDIMENTARY GEOLOGY, AND PALEONTOLOGY AND COMPARISONS WITH THE TYPE LOCALITY IN THE PRE-ALTAI GOBI.CANADIAN JOURNAL OF EARTH SCIENCES,30(10-11),2180-2195.
MLA	JERZYKIEWICZ, T,et al."DJADOKHTA FORMATION CORRELATIVE STRATA IN CHINESE INNER-MONGOLIA - AN OVERVIEW OF THE STRATIGRAPHY, SEDIMENTARY GEOLOGY, AND PALEONTOLOGY AND COMPARISONS WITH THE TYPE LOCALITY IN THE PRE-ALTAI GOBI".CANADIAN JOURNAL OF EARTH SCIENCES 30.10-11(1993):2180-2195.