地史学教学课件-地史学4.pptVIP

Chapter 2 Sedimentary paleogeography-3;2.2 Sed. facies indicators;2.2.2 physic indicators;Lithology;Color: originated weathered;Color: weathered;“three-good” Conglomerate （周口店，C2）;Tuffaceous tempestite，D1， 北塔山，新疆;“three-good” Conglomerate （周口店，C2）;Baltic beach，Bornholm, Danmak ;Glendonites from the Permian Wandrawandian Siltstone,Warden Head, Sydney Basin;Oolitic limestone（滇西, Permian）;Bedding-plane structures;Ripple marks ;Ripple marks rhomboidal ;Ripple marks ;Asymmetric ripples, 北戴河潮坪;parasitic ripples, 北戴河潮坪;Mudcracks----desiccations, present;Mud cracks（博格达山，井井子沟组）;Ichniotherium cottae (P, Germany);;Flutes on the soles of sandstone;Bedding;Basic terms of bedding;Important beddings and illustrations;Horizontal, parallel, tabular, wedge-,  trough-crossbedding; the wedge-crossbedding formed by wind;A Tabular cross-beddingC Trough cross-bedding;Wedge-bedding formed by wind, Utah, USA;楔状层理，负载构造，滨湖相砂岩上第三系，塔北;Wedge-bedding in aeolian dunes, P, Scotland;Feather crossbedding, J, 羌塘;Horizontal bedding in the lake, N2, 山旺;Parallel bedding, 羌塘，J）;climb beddings;Graded bedding 阿勒泰，D1;Bedding generated by wave;Bedding generated by wave, Pt3, 鸡冠山, 北戴河;Tidal beddings;Tidal beddings, P1, NSW, Australia;Soft-sediment deformations;Load-casts Convolute beddings Flames structures Sandy volcanoes;Load-casts on the base of sandstone bed from an interbedded sandstone/mudstone sequence, P,天山;Loadcasts;convolute beddings in the lacustrine facies, N2, 山旺;Loadcasts, flames;Sandy volcanoes;2.2 Sed. facies indicators;2.2.3 chemical indicators;Eye-birds in dolomite, Pt2,铁岭组， 周口店;Halite pseudomorphs;Tepee structure;Devonian biomarkers from South China;2.2 Sed. facies indicators;Vertical sequence of the indicators ----facies model;Model for fluvial facies;Chapter 2 Sedimentary paleogeography-3