SEDIMENTARY ROCKSa

Báo cáo " Quaternary sedimentary cycles in relation to sea level change in Vietnam " pdf

Báo cáo
... and  sedimentary cycles in the sea bottom    Fig. 11. Weathering spotted clay in Late Pleistocene  sediment in SW of Eastern Sea.   6. Quaternary shorelines in bottom of continental  shelf of Vietnam ... sedimentary cycles corresponding to 5 cycles of  sea level change in Red River Delta, Cuu Long  River  Delta,  and  Central  plain.  In Central  littoral  plain,  the  relationship  between  sedimentary ... Delta (CLRD) are the biggest plains in Vietnam.   Developing  history  and  sedimentary evolution  of  both  deltas  have  closely  related  with  sea level changes  in Quaternary in which  regression  were  according ...
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Báo cáo " Reconstructing sedimentary environments of MR1 core and investigating facies’ geotechnical properties through the piezocone penetration test in the Late Pleistocene-Holocene periods in the Mekong River Delta " docx

Báo cáo
... very fine and fine sand laminae The pro -delta is 3.5 m thick in the MR1 core In comparison with the pro -delta in the VL1 core, which is 10 m thick, the pro -delta in MR1 is so thin The coarsening-upward ... from the VL1 core [2] in the interfluvial zone (Fig 1) Estuarine channel sediment was found in the MR1 core at a depth of -41.5 m and in the BT2 core at a depth of 62.3 m In the VL1 core, the ... 18,000-20,000 yr BP [9] The fall in sea level led to the lowering of the base level of the river, resulting in an incised valley The MR1 core was within this incised valley system Following the last glacial...
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Báo cáo " Characteristics of Quaternary sedimentary facies in relation to water bearing capacity of aquifers and aquicludes in the Red River Delta, Vietnam " ppt

Báo cáo
... deltaic  facies and silty  clay  of lagoonal  facies in the central  part  passing  into  silty clay of flood plain, oxbow, coastal swamp  and peat facies in the direction from the plain to the ... in some places there is no trace of the fine grain  sediments,  but  there  remain  only  the coarse  grained sediments of river bed facies,  which are  of high  storage  and water bearing capacity.   These  are  ... mainly  of greenish  gray  fine  clayey  sand  of lagoonal  and coastal  swamp  facies of Hai Hung Formation in the upper sequence and the fine sediments of deltaic and marine facies of ...
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Báo cáo nghiên cứu khoa học " HYDROLOGICAL AND SEDIMENTARY STRUCTURE OF THE WATER COLUMN IN THE BACH DANG - CAM ESTUARY " ppsx

Báo cáo nghiên cứu khoa học
... averaging over the water column As the water density is mostly related to the salt concentration, the saline intrusion driven by tidal propagation contributes to the structure of the water column The ... and wetlands, which accounts for 20% and 42% of the liquid contributions of the total inputs in the wet and dry season, respectively These budgets also indicated that during the wet season, the ... (white) season Since the celerity of the tidal wave propagates faster with increasing water depth, the shape of the tidal wave gets distorted for shallow estuary, where the difference in water height...
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bài giảng địa chất đại cương chương 10 đá trầm tích(sedimentary rock)

bài giảng địa chất đại cương chương 10 đá trầm tích(sedimentary rock)
... LOẠI ĐÁ TRẦM TÍCH • Dựa vào nguồn gốc, theo tiêu chuẩn đá trầm tích chia làm hai nhóm : • * Nhóm đá trầm tích mảnh vỡ • * Nhóm đá trầm tích hóa học sinh học 1 Nhóm đá trầm tích mảnh vỡ (vụn) • Đá ... 1 /Đá vôi: a /Đá vôi gốc sinh học: -đá vôi san hô -đá vôi rong -Đá vôi trùng thoi (fusulina) - Đá vôi vỏ sò ốc - Đá phấn • • • Đá vôi nguồn gốc hóa học:Hiện chất vôi hòa tan nước kết tủa thành đá ... • Vậy, đá trầm tích do: • Biến đổi (hóa đá) chậm chạp lọai vật liệu có trước (chất trầm tích) • Sự hóa đá không làm tính chất vật liệu lắng tụ xếp lớp, dấu sinh vật I/ KHÓANG VẬT ĐÁ TRẦM TÍCH...
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08 chapter 08 habitat of HC in sedimentary basins new

08 chapter 08 habitat of HC in sedimentary basins new
... pattern of a sedimentary basin Main content: Geometry of Sedimentary Basins Sediment Fill Tectonic Processes and Timing Basin-Forming Mechanisms Sedimentary Basin Classification 10 Geometry of Sedimentary ... basins of the world Fig: 20 Major interior basins of the world 42 Table 10.1 Interior Basin (Intracratonic, sag) • Distinguishing features simple, single cycle; no uplands; in continental interiors ... Content Introduction 8.1-The Sedimentary Basin Concept 8.2 -Sedimentary Basin Classification 8.3-Distribution of petroleum – rich basins Introduction There are approximately 600 sedimentary rock basins...
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Even more sedimentary rocks

Even more sedimentary rocks
... (flood event?) Sedimentary environments Concept of Sedimentary “Facies” “Facies” are representations of sedimentary environments defined by the overall association of features preserved in rocks ... dunes at top of picture Sedimentary Structures Note ripplemarked sand dunes at top of picture Sedimentary structures: Mud Cracks Say you find mud cracks in an ancient sedimentary rock What does ... internal layering Internal inclined layers Contacts between sedimentary beds More cross-bedding Bed contacts” Fig 7.25abc W W Norton More cross-bedding Cross beds Bed contacts” Cross-bedding Transport...
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More sedimentary rocks

More sedimentary rocks
... us about the nature of the source rocks Loose Sediments gravel sand silt clay Sedimentary rocks conglomerate sandstone siltstone shale Detrital Sedimentary Rocks ❖ Other important textural features: ... Detrital Sedimentary Rocks Breccia ❖ Course like a conglomerate, but with angular grains ❖ Short transport! ❖Deposited close to the source area for sediment ◆ Detrital sedimentary rocks Sandstone ... Example: Well-sorted Poorly-sorted ◆ Detrital Sedimentary Rocks Shale & Siltstone ❖ Silt & clay-sized particles (mud, clay, silt) ❖ Over 1/2 of all sedimentary rocks ❖ Particles too small to identify...
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Sedimentary rocks

Sedimentary rocks
... of older rocks in a conglomerate Sedimentary Rocks and the Rock Cycle Volcanic rocks (basalt flows on Hawaii) being turned into sediments Basalt flows Basalt gravels Older sedimentary rocks Younger ... (transport) processes • Soils •Types of sedimentary rocks: Chemical Origin of Sedimentary Rocks - Derived through the weathering and erosion of pre-existing rocks - Form by the transport and accumulation ... Erosion (transport) & local deposition Sedimentary environments & processes Deposition, burial, lithification Sedimentary Rocks and the Rock Cycle Older sedimentary rocks (conglomerate) being recycled...
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