DACIAN BASIN - GeoEcoMar

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66 Chapter 2. Dacian Basin paleogeography. Sedimentological interpretation and because it was permanently connected to the Euxinian Basin, Dacian Basin is to be considered itself a sea. The permanent connection with a large sea strongly argues against the lacustrine nature of the Dacian Basin. From its – peripheral and partly detached – placement, the Dacian Basin appears as a marginal sea of Mediterranean type, located at the periphery of the Euxinian large sea.
Quaternary deposits cover the central and outer part of the Dacian Basin (Fig 1.2), as already mentioned. For the study of sedimentology, the image of the sediment thickness distribution offers a precious opportunity to get information regarding the entire area of the Dacian Basin. This is the reason why so much importance is given to the presentation and interpretation of the Dacian Basin isopach maps. 3.1. DATA SOURCES Researchers studying the Dacian Basin benefit from several sources of data regarding the distribution of sediment thickness (Fig. 3.1). Two of the sources (Fig. 3.1 A and B) are atlases of lithologic-paleogeographic maps with different types of information including isopach maps. These maps cover the entire Dacian Basin. The other sources of sediment thickness data (Fig. 3.1 C, D and E) are isopach maps drawn for restricted areas within the Dacian Basin. 3.1.1. Lithofacies Atlas of Romania Chapter 3 SEDIMENT THICkNESS DISTRIBUTION IN THE <strong>DACIAN</strong> <strong>BASIN</strong> The Neogene lithofacies atlas of Romania (Saulea et al., 1969) includes isopach maps at several stratigraphic levels (Figs. 3.2; 3.3; 3.4; 3.5; 3.6), as presented in chapter 2.1.1. The existence of Neogene sediment thickness for the whole basin extent, proved to be very important for the sedimentogenetic evaluation of the Dacian Basin deposits. The isopachs were drawn at the 100m interval. The isopach maps are based on outcrop data, but mostly, on information from 80 – 100 boreholes. The distribution of the sediment thickness accumulated in the Dacian Basin is presented by Saulea et al. (1969) for the following time intervals: Middle and Late Sarmatian (s.l.), Maeotian, Early Pontian, Late Pontian-Dacian and Romanian (formerly Levantine). 67
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Dan C. Jipa, Cornel Olariu DACIAN B
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Dedicated to the memory of Prof. Gh
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NATIONAL INSTITUTE OF MARINE GEOLOG
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CONTENTS Foreword and Acknowledgeme
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Contents Chapter 7. The Point Bar F
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FOREwORD AND ACkNOwLEDgEMENTS The s
Page 17: PLATE 1. Location of the Dacian Bas
Page 20 and 21: 18 Chapter 1. Dacian Basin. General
Page 42 and 43: The analysis of the paleogeographic
Page 44 and 45: 42 Chapter 2. Dacian Basin paleogeo
Page 60 and 61: 58 FIGURE 2.14. Paleogeography and
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Page 86 and 87: 84 Chapter 4. Dacian Basin Physiogr
Page 96 and 97: 94 Chapter 5. Littoral Sedimentary
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116 Chapter 5. Littoral Sedimentary
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Fluvial sedimentation played a majo
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136 Chapter 6. Upper Neogene Fluvia
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The large and continuous rock expos
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158 Chapter 7. The Point Bar Facies
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190 Chapter 8. The Paleoenvironment
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The evolution and architecture of a
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200 Chapter 9. Source-Areas in the
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10.1. SEDIMENT ACCUMULATION AREAS I
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214 Chapter 10. History of the Daci
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230 Chapter 11. From Brackish-Marin
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Ai n s w o r t h r. B., Cr o w l e
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258 References hA m o r, g., et al.
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260 References mA C A r o V iC i, n
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262 References ră d A n, s.C., 200
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264 References VAsilieV, i., Kr iJ
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DACIAN BASIN - GeoEcoMar

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