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Open Journal of Geology (OJG) is an international journal dedicated to the latest advancements in geology. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of geology. All manuscrip…
Nyamsambuu Odgerel, Niiden Ichinnorov, Adiya Eviikhuu, Batsuren Tegshbayar
The present study focuses on the Lower Cretaceous Khukhteeg Formation (Central Mongolia), which yields palynological assemblage that is used to understand the paleoclimate. Palynology samples from the Khovil opencast mine Choir-Nyalga Basin in the Central Mon…
Zikun Jiang, Benpei Liu, Yongdong Wang, Min Huang, Tom Kapitany, Ning Tian, Yong Cao, Yuanzheng Lu, Shenghui Deng
Normally, trees on the side directly exposed to sunlight will grow faster than the opposing side. This phenomenon is termed plant phototropism. Moreover, palaeomagnetists have revealed that the Junnar Block has never rotated since the Mesozoic. The petrified…
Qing Xu, Xiaoju Yang
In the middle Cretaceous vegetation changed rapidly for the diversification of angiosperms, there are few extensive analyses of the plant fossils (including leaves, fruits, seeds and woods) from this period in China. New abundant fossil plants collected from…
Clémentine Peggy Anne-Marie Colpaert, Boris Leonidovich Nikitenko, 1 1
Foraminifer is a very useful microorganism to perform biostratigraphical zonation of the Upper Jurassic. Foraminiferal biozones are calibrated by the ammonite standard zones and can be used for intra- and interregional correlations. Furthermore, the fossil re…
Boukhalfa Kamel, Jingeng Sha, Soussi Mohamed, Gang Li, Ben Ali Walid, Ouaja Mohamed
The Lower Cretaceous mixed siliciclastic-carbonate successions of the Boulouha Formation at the type locality in the Dahar escarpment of southern Tunisia have yielded a new discovered assemblage of bivalves which contains Anomia laevigata (Sowerby); Modiolus…
Xinfa Li, Guobiao Li
Cretaceous radiolarians were firstly reported from the Eocene Sand-Shale Member of Zhepure Formation in the Gulupu section, Tüna, Yadong, Tibet. In spite of poor preservation, 24 species of 14 radiolarian genera have still been identified, clearly indicating…
Xin Rao
Two Biradiolites species described from the Yigeziya Formation of the southwestern Tarim Basin are revised. The Maastrichtian Biradiolites boldjuanensis is small and pipe-like species that is usually preserved as clusters or bouquets. Although it was consider…
Olga S. Urman, Boris N. Shurygin, Oksana S. Dzyuba
The stratotype region of the Ryazanian stage is located in the Oka River Basin near Ryazan, Central Russia. Since ammonites are very well studied here, we investigated other groups of macrofossils. We report a large number of bivalve genera: Arctica, Astarte,…
Igor N. Kosenko, Olga S. Urman, Egor K. Metelkin, Boris N. Shurygin, Alexander E. Igolnikov
New data on the litho- and biostratigraphy of the Jurassic/Cretaceous (J/K) boundary interval of the lower reaches of the Lena river, at the Cape Chekurovka and Cape Chucha, are presented. Volgian-Valanginian interval of the Chekurovka section is represented…
Atsushi Matsuoka, Tsuyoshi Ito, Yusuke Sakai
Chert clast-bearing epi-continental neritic-terrestrial Jurassic and Cretaceous sequences are sporadically distributed in southwestern Japan. Typical and geological entities are the Torinosu Group and Tetori Group. Radiolarian dating of chert clasts enables u…
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Open Journal of Geology (OJG) is an international journal dedicated to the latest advancements in geology. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of geology. All manuscrip… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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