The Cretaceous – Paleogene extinction event, often referred to as the Cretaceous – Tertiary extinction event, occurred approximately 65. 5 million years ago ( Ma ) at the end of the Maastrichtian age of the Cretaceous period.

Pyrope and spessartine gemstones have been recovered from the Sloan diamondiferous kimberlites in Colorado, from the Bishop Conglomerate and in a Tertiary age lamprophyre at Cedar Mountain in Wyoming.

The plug of salt rises through geological formations of Tertiary geologic age.

It is known widely as Tertiary age fossils in Europe and well outside its present day range in Asia and North America, showing a once circumpolar northern distribution.

Much of the record of this deformation has been overridden by Tertiary age structures and the zone of Cretaceous dextral thrust faulting appears to have been widespread.

Over time, as the range built up, newer activity diminished older Tertiary age rock.

There are several striking examples of basalt dikes of Tertiary age, one having been traced from the Lead Hills south-east by Moffat, across Eskdalemuir to the English border.

Precambrian basement rock in this region is overlaid with sediments bearing coal from the Cretaceous and Tertiary age.

The Atlantic Coastal Plain is covered by pine forests and salt marshes and is underlain by poorly consolidated sedimentary formations from the Cretaceous, Tertiary, and Quaternary age that dip seaward.

Varkala is an important place as far as Kerala Geology is concerned as it exposes sedimentary rocks belonging to the Tertiary age, popularly known in the Geological literature as the Warkalli formation.

The most important formations are the Cretaceous chalks, which are exposed as the high ground in the north and west of the county, and the Tertiary rocks made up of the Paleocene age Reading beds and Eocene age London Clay that occupies the remaining southern part.

Geologically, the mountains are almost entirely composed of sedimentary rocks of Tertiary age.

A layer of the Tertiary age pebbly gravels is around Anzac Parade, left over from when the Molonglo river was at a

Tertiary age pebbly gravels are around Anzac Parade left from when the Molonglo river was at a higher level.

After 150 million years of volcanism, plutonism, metamorphism, and thrust faulting had run their course, the early part of the Cenozoic era ( early Tertiary, 65 – 30 Ma ) was a time of repose ; neither igneous nor sedimentary rocks of this age are known here.

Underhill found that all layers of rock down to the Permian ( with an age of about 250 million years ) are synclinically folded, and that sediments of Tertiary age at the crater onlap its sides and thicken into its axis, suggesting that the salt was moving ( a process called halokinesis ) while Tertiary sediments were being laid down.

At least two erosional surfaces can be recognised within the pediplain are the Tertiary age.

One theory is that the area in which the fossils are located, i. e., the Narmada Valley near Mandla, was actually a deep inundation of the sea into peninsular India until the Post-Cambrian Tertiary age, about 40 million years ago.

It is composed of Cretaceous metamorphic rocks ( predominantly schists and gneisses ) and quartzdioritic intrusives of Tertiary age.

The whole park lies on the Kerri formation, of Tertiary age, which is composed of sandstone, silt stones, kaolinites and grits.

Tertiary age pebbly gravels are around Parkes Way left from when the Molonglo river was at a higher level.

On top of this to the east and west of Jerrabomberra creek are Tertiary pebble gravels, and also quaternary alluvium.

# Alluvial or Tertiary ( Aufgeschwemmte ) Series-poorly consolidated sands, gravels, and clays formed by the withdrawal of the oceans from the continents.

Tertiary river gravels are found in the Blackall Street area.

Smaller outliers of younger Tertiary high ground exist to the west of the main ridge including Harrow Hill where Bagshot sands survive and at Horsendon Hill and Hanger Lane, where the Claygate Beds of the top of the London Clay formation are capped by much younger gravels deposited by the Thames.

Additionally, all six turtle families in existence at the end of the Cretaceous survived into the Tertiary and are represented by current species.

Tertiary explosives, also called blasting agents, are so insensitive to shock that they cannot be reliably detonated by practical quantities of primary explosive, and instead require an intermediate explosive booster of secondary explosive.

The terms ' Paleogene System ' ( formal ) and ' lower Tertiary System ' ( informal ) are applied to the rocks deposited during the ' Paleogene Period '.

By dividing the Tertiary Period into two periods instead of five epochs, the periods are more closely comparable to the duration of ' periods ' in the Mesozoic and Paleozoic Eras.

A student's first examination marks in New South Wales and a combination of examination marks and coursework in other states ( except Queensland ) are indexed into the Australian Tertiary Admission Rank ( ATAR ).

Clay minerals of Late Tertiary mudstones are expandable smectites whereas in older rocks especially in mid to early Paleozoic shales illites predominate.

Calanques are remains of ancient river mouths formed mostly during Tertiary.

Tertiary education levels are higher, while the population is younger.

Crystalline rocks crop out at several capes ; Cretaceous limestones, containing an abundant and specific fauna of gigantic ammonites, occur at Dui on the west coast ; and Tertiary conglomerates, sandstones, marls and clays, folded by subsequent upheavals, are found in many parts of the island.

Little of the soil continuum dates back beyond the Tertiary period and most soils and land surfaces are no older than the Pleistocene Epoch.

In the northeast southward dipping and internally thrusted Tertiary foreland deposits ( flysch and molasse ) are found.

Alpine ( Tertiary ) contact-or Buchan metamorphism is rare in the Alps, because intrusions are rare.

Wānanga educational programmes are accredited through the New Zealand Qualifications Authority ( NZQA ) and the Ministry of Education, and are partly governed by New Zealand's Tertiary Education Commission ( TEC ).

There are high cliffs on both shores, rising to roughly 330 m on the northeast shore, and twice that on the southwest shore as a result of the tilting of the earth's crust locally during the early Tertiary.

# Tertiary gene pool ( GP-3 ): Members of this gene pool are more distantly related to the members of the primary gene pool.

Strictly speaking scientifically, the Vosges Mountains are not mountains as such, but rather the western edge of the unfinished Alsatian graben, stretching continuously as part of the larger Tertiary formations.

They are known since the Jurassic and can be found as fossil e. g. in layers from Tertiary times.

Geologically, the chines in Alum Bay, in Totland ( Widdick Chine ), and the three in Colwell Bay ( Colwell Chine, Brambles Chine and Linstone Chine ) are in Tertiary rocks.

The three extant genera of gnetophytes, a " bizarre and enigmatic " trio, are likely aberrant members of the group, which was diverse and dominant in the Tertiary.

Tertiary carbocations are more stable ( and form more readily ) than secondary carbocations ; primary carbocations are highly unstable because, while ionized higher-order carbons are stabilized by hyperconjugation, unsubstituted ( primary ) carbons are not.

Fossils of Lauraceae are common in the Tertiary strata of Europe and North America, but they virtually disappeared from central Europe in the Late Miocene.