Reply to ‘Comment on: “Establishing the Late Pleistocene-Holocene sedimentation boundary in the southern North Sea using OSL dating of shallow continental shelf sediments” by L. Alappat,A. Vink,S. Tsukamoto,M. Frechen,Proceedings of the Geologists’ Association 121 (2010), 43–54’ by B. Mauz

The major concerns in the correspondence of Mauz (2012) was the correction applied for the calculation of cosmic dose in response of changing sea level in the past and statistical parameters used as well as the selection of MAM. A better approach is discussed in this note for the calculation of cosmic dose over a variable time span of rising sea level with the help of established sea level curves in the area. The selection of MAM-3 for the estimation of final De's are discussed in the article. The comments by Mauz (2012) have been helpful in rectifying some confusions that might have arisen in the original article of Alappat et al. (2010). However, some comments were merely speculative in nature and made by ignoring the statements that have been clearly mentioned in the article. After addressing various concerns of Mauz (2012), the results show that the variation in the final age due to this is small and within the uncertainty for all the samples.     

Upper Oligocene Sediments of the Ciscaucasus,Volga–Don,and Mangyshlak Regions (Central Eastern Paratethys): Communication 1. Main Compositional and Structural Features

Upper Oligocene sediments of the Eastern Paratethys are distinguished in the Maikop Group owing to several characteristic features. They form a thick (1000–1200 m) sequence with specific composition and structure in different structural–facies zones of the basin. The development of fish facies is the most remarkable feature. It includes unique sediments composed of fish bone detritus (FBD) and iron sulfides with high contents of REE, U, Sc, Re, Ni, Co, Mo, and other elements. These elements form commercial uranium–base metal deposits so far unknown in other formations of the Earth. The structure of thick rock sequences in the deepest part of the Eastern Paratethys is also characterized by specific features. Deep-sea clayey fish-facies sediments intercalate with beds of fine-grained sandy and silty material. Their influx into the central part of the basin was responsible for the clinoform structure of the rock sequence revealed by seismostratigraphic studies. This communication presents new data on the distribution of bone detritus deposits, composition and structure of sediments, and summary characteristics of Upper Oligocene sediments that are essential for the further analysis of facies–paleogeographic sedimentation conditions in the central Eastern Paratethys.     

Reply to the Comment by Tan Mingxuan et al. (2017), on “A new Discovery of the Early Cretaceous Supercritical Hyperpycnal Flow Deposits on the Lingshan Island, East China”

<正>We thank Tan Mingxuan et al.(2017)for their comments stimulated by our short paper in the recent Acta Geologica Sinica(English edition).We are grateful for the opportunity to expand on the model of the supercritical hyperpycnal flow deposits in the Beilaishi section on the Lingshan Island,and to explain why the model proposed by Tan Mingxuan et al.(2017)cannot explain the bulk of