Seismoacoustic Study of the Shallow Gas Transport and ... - E-LIB

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Chapter 3 Seismic Unit 5 ranges in thickness from
Chapter 3 Beneath seismic Unit 4, three mounded reflection patches (I, II and III) can be clearly identified at different depths (Figure 3), which are marked by black ellipses. Similar reflection types also exist in parallel profiles. Therefore, a trend of the mounded reflection patches can be observed from ENE to WSW direction. The thickness on both sides (landward and basinward) of their crest is different. Vertical reflector offsets of up to ~6 ms TWT are clearly observed in several places in each unit of the seismic profiles (Fig.s 3b and 4b), which are interpreted as faults. The vertical extent of deep faults is larger than ~460 ms TWT around these mounded reflection patches. 3.4.3.4. Seismic Unit 3 Seismic Unit 3 is generally characterized by seismic facies A (Fig. 8a), with widespread, high amplitude, moderately to good continuous and parallel reflectors. The transition from seismic Unit 4 to Unit 3 (H3) is also clearly indicated by a seismic amplitude variation and a parallel reflection with good continuity. Two main depocenters are shown in the isopach map (Fig. 8a), one in the northeast corner with a sediment thickness of ~230 ms TWT, the other in the southwest part with a sediment thickness of ~210 ms TWT. Seismic facies C and seismic facies F were clearly identified in seismic Unit 3 (Fig. 8b). Seismic facies C represents low to high amplitude, low continuous reflectors. Seismic facies F shows the chaotic semi-transparent reflection pattern disrupting the higher amplitude reflectors. The trend of seismic facies C and F is oriented from NW to SE. Figure 8 (a) Isopach map of Unit 3. (b) Seismic facies map of Unit 3. Seismic Unit 3 is generally characterized by seismic facies A, C and F. Two main depocenters located in the northeast corner and in the southwest part of the study area. 78
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Seismoacoustic Study of the Shallow
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Table of contents Table of contents
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Abstract Abstract In recent years,
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Outline of the Dissertation Outline
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Chapter 1 Chapter 1. Introduction 1
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Chapter 1 reflections, interpreted
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Chapter 1 Submarine gas seeps, pock
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Chapter 1 which have documented act
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Chapter 1 fluid migration related t
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Chapter 1 Evidence of gas seepage
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Chapter 1 The three main different
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Chapter 1 from deeper sources in th
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Chapter 1 numerous countries such a
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Chapter 1 1.5 Geological setting of
Page 30 and 31:
Chapter 1 main sequences consist of
Page 32 and 33: Chapter 1 craterlike depressions wi
Page 34 and 35: Chapter 1 Jurassic - Paleogene, Upp
Page 36 and 37: Chapter 1 respectively, and one wat
Page 38 and 39: Chapter 1 During the seismic data p
Page 40 and 41: Chapter 1 1.6.2 The Parasound sedim
Page 42 and 43: Chapter 1 Caress, D.W., and Chayes,
Page 44 and 45: Chapter 1 Hovland, M., Gardner, J.V
Page 46 and 47: Chapter 1 Luo, X.R. and Vasseur, G.
Page 48 and 49: Chapter 1 Schroot, B.M., Klaver, G.
Page 50 and 51: Chapter 2 Chapter 2. Shallow Gas Tr
Page 52 and 53: Chapter 2 times. Seismically imaged
Page 54 and 55: Chapter 2 spike noise were marked a
Page 56 and 57: Chapter 2 The 2D high resolution se
Page 58 and 59: Chapter 2 Figure 4 A close-up of se
Page 60 and 61: Chapter 2 within the upper sediment
Page 62 and 63: Chapter 2 volcanoes between 66 and
Page 64 and 65: Chapter 2 Figure 7 Geo-seismic sect
Page 66 and 67: Chapter 2 In the study area, many b
Page 68 and 69: Chapter 2 volcanism could be calcul
Page 70 and 71: Chapter 2 along the feeder channel
Page 72 and 73: Chapter 2 Evpatoriya). Soviet Geol
Page 74 and 75: Chapter 3 Chapter 3. Sedimentary Ev
Page 76 and 77: Chapter 3 South (Fig. 2). The water
Page 78 and 79: Chapter 3 Figure 3 (a) Uninterprete
Page 80 and 81: Chapter 3 Seven seismic facies type
Page 84 and 85: Chapter 3 3.4.3.5. Seismic Unit 2 A
Page 86 and 87: Chapter 3 Figure 11 (a) Uninterpret
Page 88 and 89: Chapter 3 Figure 13 (a) Uninterpret
Page 90 and 91: Chapter 3 boundary between the Plio
Page 92 and 93: Chapter 3 Seismic Unit 6 belongs to
Page 94 and 95: Chapter 3 subsidence was coincident
Page 96 and 97: Chapter 3 Acknowledgements We thank
Page 98 and 99: Chapter 3 Tugolesov, D.A., Gorshkov
Page 100 and 101: Chapter 4 study area at ~900 m wate
Page 102 and 103: Chapter 4 Figure 2 Bathymetry of th
Page 104 and 105: Chapter 4 University of Bremen). At
Page 106 and 107: Chapter 4 and Ridge R2 (GeoB07-139)
Page 108 and 109: Chapter 4 flares location. Anticlin
Page 110 and 111: Chapter 4 GeoB07-145. Green arrows
Page 112 and 113: Chapter 4 4.4.3.2.3. Other anomalou
Page 114 and 115: Chapter 4 Slope fan deposits with f
Page 116 and 117: Chapter 4 Figure 12 Possible locati
Page 118 and 119: Chapter 4 bulk hydrate or even high
Page 120 and 121: Chapter 4 may add to gas accumulati
Page 122 and 123: Chapter 4 The narrow-beam Parasound
Page 124 and 125: Chapter 4 River fan deposits. Being
Page 126 and 127: Chapter 4 Klaucke, I., Sahling, H.,
Page 128 and 129: Chapter 4 Wagner-Friedrichs, M., 20
Page 130 and 131: Chapter 5 deposited; during lowstan
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Chapter 5 accumulations. An acousti
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Acknowledgements Acknowledgements I
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