Shallow Oscillating Lacustrine Sediment of the Late Guantao Formation in Gudao Oilfield, Shandong Province
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2007-02-10
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Key words:
- Gudao Oilfield /
- Guantao Formation /
- Ng1+2 sand sets /
- shallow lakes /
- sedimentary model
Abstract: Shallow oscillating lacustrine deposit is a special kind of shallow lake, while the lake topography is smooth, lake surface is wide, and water body is very shallow. Lake plane which mainly influenced by climate rise or fall in vibrating type. Deposit mainly is mostly alternative red mudstone and grey mudstone, indicating oxidizing and reducing environment. Shallow oscillating lacustrine deposit extensively developed in the late period of Guantao Formation (Ng1+2 sand sets) in Gudao Oilfield. Deposit features show that high frequency alternative mostly red and grey mudstone, sedimentary structure generally occur in shallow lakes and creature structure growing, water plane rise to decline depositional cycle obviously. Through taking the observation of core hole, describing and analyzing lab test results, five microfacies(water channel, sand flat, mixed flat, mud flat and marsh) can be distinguished and established the high water period and low flow period sedimentary model of Ng1+2 sand sets in Gudao Oilfield.
| Citation: | WANG Jiao. Shallow Oscillating Lacustrine Sediment of the Late Guantao Formation in Gudao Oilfield, Shandong Province[J]. Acta Sedimentologica Sinica, 2007, 25(1): 82-89.
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