interbedded


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interbedded

[¦in·tər¦bed·əd]
(geology)
Having beds lying between other beds with different characteristics.
References in periodicals archive ?
Above the boundary, coarse-grained sandstone composed of feldspars and quartz was identified as the incised valley filling in the lowstand systems tract (LST), while under the boundary, bituminous siltstone interbedded with silty mudstone was deposited in a lakeshore environment.
The Capacho Formation (Upper Cretaceous - Figure 2) is mainly composed of dark-gray to black shales, interbedded with fossiliferous limestones, laminated limestone and much less proportion fine-grained arenites and siltstones (ECOPETROL, 2012).
The lower unit ([J.sub.1t3]) consists of grayish-green mudstones and siltstones interbedded with very fine- to fine-grained sandstones.
Detailed Geological Map of Poland indicates that the rocks immune to erosion can be classified as Cisna bed sandstones (Oligocene) interbedded by shales and mudstones (Jankowski and Slaczka, 2014).
This cliff is underlain and overlain by pack-grainstone packages and these packages are interbedded with wackepackstones.
The interval between 854 and 875.5 m is composed of interbedded, laminated grey mudrocks and blocky greenish-grey mudrocks, both of which appear to have been overprinted by pedogenic processes.
It comprises bioclastic packstone/grainstone deposited as distal to proximal mid-ramp carbonate tempestites, interbedded with fairweather calcareous shale (Facies 6).
The lithological variations in the Nammal Formation divided it into four well defined unitsas follows; i) Alternate marl and limestone ii) Well-bedded limestone with chert nodules iii) Limestone interbedded with shale iv) Dolomitic limestone.
Within the dark gray to brown anhydrite interbedded dolomudstone evaporite unit of the Birdbear Formation lie three organic rich intervals ranging from 3.81-63.5 cm and abundant smaller (0.35-1.2 mm) beds.
The unit found in the upper Paleocene to middle Eocene is clayey calcareous sediments interbedded with volcanic ash.
Geologically Nagthat- Berinag Formation of Jaunsar Group of rocks ( types of rocks) containing mainly Karnaprayag metavolcanics ( rocks) and interbedded quartzites ( type of rocks) are exposed between Karnaprayag and Begali.
According to the company, the new Raider bits are purpose-built for drilling to total depth through interbedded soft and hard formations of transition zones.