In some places, large sections of limestone strata and reef deposits are composed largely of their shells.
There were two drifts, one working the Penlan seam, the other the Penclawdd seam.
When combined with the related principle of faunal succession, the law of superposition provides a very powerful tool for dating rocks and strata.
The term 'fold' is used in geology when one or more originally flat sedimentary strata surfaces are bent or curved as a result of plastic (i.e. permanent) deformation.
He introduced a theory of rock formations known as Stratum, based on a pictorial cross-section of the geology under the estate and coal seams in nearby coal works of the Somerset Coalfield, projecting them according to their measured thicknesses and attitudes into unknown areas between the coal workings.
Fossil and subfossil shells of Turritella communis have been found in interglacial strata in the North Sea, from the Late Pliocene to the Quaternary Period.
The largest eosimiid, Bahinia, is from the Pondaung Formation, the same stratum as Afrasia, and the morphology of its molars bridges the gap between the more primitive molars of Eosimias and the more derived molars of the later Eocene African simians.
The Bembridge Beds are strata forming part of the fluvio-marine series of deposits of Oligocene age, in the Isle of Wight and Hampshire, England.
He first described the Cretaceous and Jurassic strata of Germany in elaborate works entitled Die Versteinerungen des Norddeutschen Oolith-Gebirges (1836–39), Die Versteinerungen des Norddeutschen Kreidegebirges (1840–41) and Die Versteinerungen des Harzgebirges (1843).
For this exhibit, Boozer used samples of excavated sedimentary rock and soil found at the nearby construction site of CityCenterDC, to recreate a geologically accurate linear progression of the earth below the gallery and city, by laying stratum after stratum in a narrow lengthwise band down the centre of the gallery floor.
The Menefee Shale is a geological stratum underlying the Chaco Wash, which is located in the northwestern portion of the U.S. state of New Mexico, in what is now Chaco Culture National Historical Park.
The bark is usually brown or grey-brown and rather corky and provides an ideal stratum for the roots of epiphytic plants such as Astelia species and Freycinetia banksii (kiekie).
Once the fungus has entered the stratum corneum is continues to invade the epidermis, it then enters a hair follicle, penetrates the hair shaft and grows down the length of the hair.
This species has a disjunct distribution along the southern and south-eastern seaboard from the Western Cape to KwaZulu-Natal on sandstone substrates, growing in dense mats in marshy areas, and in and along streams and rivers.
Because GPS is considered a stratum-0 source, a common use for the PPS signal is to connect it to a PC using a low-latency, low-jitter wire connection and allow a program to synchronize to it.
Underlying the town at some depth is the London Clay stratum, with a thick layer of Boulder clay laid down during the ice ages, including the Anglian.
Lucassen then decided to create a new band with her as lead vocalist, and selected other little-known musicians to form the rest of the band: van Stratum, keyboardist Alejandro Millán (from Elfonía as well), guitarist Lori Linstruth, and drummer Davy Mickers.
Part of the Bury is a Site of Special Scientific Interest (SSSI) famous for abundant fossils of Lower Jurassic age which occur here in the stratum known as the Cephalopod Bed.
In 2013, Dwan gave A Nonsite, Pine Barrens, New Jersey (1968), an indoor work containing substances from an outdoor site elsewhere), and Glass Stratum (1967), made up of 37 sheets of half-inch-thick glass layered atop one another, to the National Gallery of Art.