Sedimentary basins are region-scale depressions of the Earth's crust where subsidence has occurred and a thick sequence of sediments have accumulated to form a large three-dimensional body of sedimentary rock. [1] [2] [3] They form when long-term subsidence creates a regional depression that provides accommodation space for accumulation of ...

Sedimentary basins range in size from as small as hundreds of meters to large parts of ocean basins. The essential element of the concept is tectonic creation of relief, to provide both a source of sediment and a relatively low place for the deposition of that sediment. 1.2 Keep in mind that a sedimentary basin doesn’t have to be a place on the

A sedimentary basin is an area of the Earth’s crust that is underlain by a thick sequence of sedimentary rocks. Hydrocarbons commonly occur in sedimentary basins and are absent from intervening areas of igneous and metamorphic rocks (North, 1971).

Sedimentary Basins Are Needed to Collect Sediment. Most of the sediments that you might see around you, including talus on steep slopes, sand bars in streams, or gravel in road cuts, will never become sedimentary rocks.

The sedimentary environment is the specific depositional setting of a particular sedimentary rock and is unique in terms of physical, chemical, and biological characteristics. The physical features of a sedimentary environment include water depth and the velocity and persistence of currents.

2014年1月1日 · Sedimentary basins are regions of prolonged subsidence of the Earth’s surface that provide the accommodation space for mineral and organic material (Allen and Allen, 2005). These deposits – the sedimentary rocks – are the record of the past geological history including tectonic events, climatic conditions, changes in sea level, and other ...

2024年8月22日 · Sedimentary Basins Are Needed to Collect Sediment; Sedimentary Records of Sea-Level Change. Eustatic or Relative? The setting in which sediments are accumulated is called a depositional environment. (Some of the more important of these environments are illustrated in Figure 9.19.)

Sedimentary basins and sedimentary materials cover most of Earth's surface. Understanding the evolution of sedimentary basins, and the reasons for their existence in particular places at specific times, can provide fundamental insights into a wide range of Earth processes.

2024年6月1日 · Understanding Sedimentary Basins: An Overview. Sedimentary basins are geological depressions where sediments accumulate over time, creating layers of rock and soil that can provide valuable information about Earth’s history and resources.

2024年4月24日 · Trench basins form where a subducting oceanic plate dips beneath the overriding continental or oceanic crust. They can be several kilometers deep, and in many cases, host thick sequences of sediments from eroding coastal mountains.