C
Chao Ma
Researcher at University of Idaho
Publications - 38
Citations - 887
Chao Ma is an academic researcher from University of Idaho. The author has contributed to research in topics: Geology & Cretaceous. The author has an hindex of 11, co-authored 27 publications receiving 538 citations. Previous affiliations of Chao Ma include China University of Geosciences (Beijing) & University of Wisconsin-Madison.
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Journal ArticleDOI
An astronomically calibrated stratigraphy of the Cenomanian, Turonian and earliest Coniacian from the Cretaceous Western Interior Seaway, USA: Implications for global chronostratigraphy
James S Eldrett,Chao Ma,Chao Ma,Steven C. Bergman,Brendan Lutz,F. John Gregory,P Dodsworth,Mark Phipps,Petros Hardas,Daniel Minisini,Aysen Ozkan,Jahander Ramezani,Samuel A. Bowring,Sandra L. Kamo,Kurt M. Ferguson,C. I. Macaulay,Amy E. Kelly +16 more
TL;DR: In this article, integrated, astronomically tuned age models for a relatively expanded section of the Eagle Ford Group (Texas, USA) from the Shell Iona-1 research core, which encompass >8 myr ranging from the earliest Cenomanian to the earliest Coniacian, were described.
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Origin of limestone-marlstone cycles: Astronomic forcing of organic-rich sedimentary rocks from the Cenomanian to early Coniacian of the Cretaceous Western Interior Seaway, USA
James S Eldrett,Chao Ma,Chao Ma,Steven C. Bergman,Aysen Ozkan,Daniel Minisini,Brendan Lutz,Brendan Lutz,Sarah-Jane Jackett,Sarah-Jane Jackett,C. I. Macaulay,Amy E. Kelly +11 more
TL;DR: In this paper, an integrated multidisciplinary study of limestone-marlstone couplets from a continuously cored section including parts of the upper Buda Limestone, the entire Eagle Ford Group (Boquillas Formation) and lower Austin Chalk from the Shell Iona-1 research borehole (Texas, USA), which provides a >8 million year (myr) distal, clastic sediment-starved, intrashelf basin record of the early Cenomanian to the earliest Coniacian Stages.
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Theory of chaotic orbital variations confirmed by Cretaceous geological evidence
TL;DR: In this article, the authors present geological evidence for a chaotic resonance transition associated with interactions between the orbits of Mars and the Earth, using an integrated radioisotopic and astronomical timescale from the Cretaceous Western Interior Basin of what is now North America.
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Cenozoic thrust system, basin evolution, and uplift of the Tanggula Range in the Tuotuohe region, central Tibet
TL;DR: The Tanggula thrust system (TTS) as mentioned in this paper is a large Cenozoic thrust system that is parallel to the Tang Gula Range and Tuotuohe region, cen- tral Tibet.
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Testing the astronomical time scale for oceanic anoxic event 2, and its extension into Cenomanian strata of the Western Interior Basin (USA)
TL;DR: In this article, X-ray florescence (XRF) core scanning is utilized to develop a new elemental data set for cyclostratigraphic investigation of CenomanianTuronian strata in the WIB, using material from the Aristocrat-Angus-12-8 core (northcentral Colorado).