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Meaning of K/T boundary in the English dictionary

Dictionary
DICTIONARY
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ETYMOLOGY OF THE WORD K/T BOUNDARY

K and T, symbols for Cretaceous and Tertiary, respectively.
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Etymology is the study of the origin of words and their changes in structure and significance.
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PRONUNCIATION OF K/T BOUNDARY

K/T boundary play
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GRAMMATICAL CATEGORY OF K/T BOUNDARY

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K/t boundary is a noun.
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A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.
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WHAT DOES K/T BOUNDARY MEAN IN ENGLISH?

K/T boundary

Cretaceous–Paleogene boundary

The Cretaceous–Paleogene boundary, formerly known as the Cretaceous–Tertiary boundary, is a geological signature, usually a thin band. It defines the end of the Mesozoic Era, and is usually estimated at around 66 Ma, with more specific radioisotope dating yielding an age of 65.5 ± 0.3 Ma. K is the traditional abbreviation for the Cretaceous Period, and Pg is the abbreviation for the Paleogene Period. The boundary marks the end of the Cretaceous Period, which is the last period of the Mesozoic Era, and marks the beginning of the Paleogene Period of the Cenozoic Era. The boundary is associated with the Cretaceous–Paleogene extinction event, a mass extinction, which is considered to be the demise of the non-avian dinosaurs.

definitionDefinition of K/T boundary in the English dictionary

The definition of K/T boundary in the dictionary is Cretaceous/Tertiary boundary: the time zone comprising the end of the Cretaceous and the beginning of the Tertiary periods.

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ENGLISH WORDS THAT BEGIN LIKE K/T BOUNDARY

K/T boundary
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These words share the same root as K/T boundary. Click on the words to load more information.

Synonyms and antonyms of K/T boundary in the English dictionary of synonyms

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SYNONYMS
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WORDS RELATING TO «K/T BOUNDARY»

K/T boundary boundary cretaceous paleogene formerly known tertiary geological signature usually thin band defines mesozoic estimated around with more specific radioisotope dating yielding traditional abbreviation merriam webster noun transition between periods geologic time characterized universe today what killed that question puzzled paleontologists since were first discovered maybe global climate impact wiped planetary science institute paintings text copyright william hartmann page design daniel berman happened brief according abundant michigan state university hypothesis ralph taggart professor department plant biology sciences info bytes bull location chicxulub site mile wide comet reference geology zone comprising dinosaur fossil reptile encyclopedia only disappeared million years also referred modifier predates deposit identified negative shift occurrence danian planktic foraminifera sections across dinoflagellate distributions test presence alleged nannofossil index markers upper

Translation of «K/T boundary» into 20 languages

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TRANSLATION OF K/T BOUNDARY

Find out the translation of K/T boundary to 20 languages with our English multilingual translator.
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The translations of K/T boundary from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «K/T boundary» in English.
Chinese Spanish English Hindi Arabic Russian Portuguese French German Japanese Korean Vietnamese Italian Polish Ukrainian Romanian Greek Afrikaans Swedish Norwegian
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zh

Translator English - Chinese

K / T界线
1,325 millions of speakers
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es

Translator English - Spanish

Límite K / T
550 millions of speakers
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en

Translator English - English

K/T boundary
510 millions of speakers
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hi

Translator English - Hindi

कश्मीर / टी सीमा
380 millions of speakers
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ar

Translator English - Arabic

K / T الحدود
280 millions of speakers
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ru

Translator English - Russian

К / Т границы
278 millions of speakers
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pt

Translator English - Portuguese

K / T fronteira
270 millions of speakers
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fr

Translator English - French

Limite K / T
220 millions of speakers
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de

Translator English - German

K / T- Grenze
180 millions of speakers
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ja

Translator English - Japanese

K / T境界
130 millions of speakers
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ko

Translator English - Korean

K / T 경계
85 millions of speakers
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vi

Translator English - Vietnamese

K / T ranh giới
80 millions of speakers
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it

Translator English - Italian

K / T confine
65 millions of speakers
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pl

Translator English - Polish

K / T granica
50 millions of speakers
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uk

Translator English - Ukrainian

К / Т кордону
40 millions of speakers
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ro

Translator English - Romanian

K / T limită
30 millions of speakers
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el

Translator English - Greek

K / T όριο
15 millions of speakers
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af

Translator English - Afrikaans

K / T grens
14 millions of speakers
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sv

Translator English - Swedish

K / T- gränsen
10 millions of speakers
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no

Translator English - Norwegian

K / T grensen
5 millions of speakers
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Trends of use of K/T boundary

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TENDENCIES OF USE OF THE TERM «K/T BOUNDARY»

The term «K/T boundary» is regularly used and occupies the 94.714 position in our list of most widely used terms in the English dictionary.
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The map shown above gives the frequency of use of the term «K/T boundary» in the different countries.
Principal search tendencies and common uses of K/T boundary
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List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «K/T boundary».
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FREQUENCY OF USE OF THE TERM «K/T BOUNDARY» OVER TIME

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The graph expresses the annual evolution of the frequency of use of the word «K/T boundary» during the past 500 years. Its implementation is based on analysing how often the term «K/T boundary» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about K/T boundary

Examples
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10 ENGLISH BOOKS RELATING TO «K/T BOUNDARY»

Discover the use of K/T boundary in the following bibliographical selection. Books relating to K/T boundary and brief extracts from same to provide context of its use in English literature.
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Plants and the K-T Boundary
In this text, two of the world's leading experts in palynology and paleobotany provide a comprehensive account of the fate of land plants during the 'great extinction' about 65 million years ago.
autorDouglas J. Nichols, Kirk R. Johnson, 2008
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The Cretaceous-Tertiary Event and Other Catastrophes in ...
The South Atlantic is represented by several well-studied K/T boundary cores. Deep Sea Drilling Project (DSDP) Sites 524 through 529 on the Walvis Ridge produced several important K/T papers (e.g., Hsu et al., 1982; Perch-Nielsen et al ., ...
autorGraham Ryder, David E. Fastovsky, Stefan Gartner, 1996
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Global Biomass Burning: Atmospheric, Climatic, and ...
(1988) indicate from work in the high latitudes of southeastern Australia that cold and darkness may not have been a prime factor in the extinction of dinosaurs at the K/T boundary unless the duration exceeded three to five months. Dinosaurs ...
autorJoel S. Levine, 1991
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4
New Zealand Journal of Geology and Geophysics
Diagnostic elements were: arsenic, calcium, chromium, cobalt, iron, magnesium, manganese, nickel, phosphorus, and sulphur. In lacustrine sediments near Rewanui, a possible location of the K/T boundary was indicated by anomalous levels ...
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The Cretaceous/Tertiary boundary interval, Raton Basin, ...
Although the origin of the unit is uncertain and controversial, petrographic and chemical evidence suggests it is not composed of glassy altered impact material. 4. Kaolinite and goyazite spherules occur in the K/T boundary claystone, but not in ...
autorGlen A. Izett, 1990
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Effects of Past Global Change on Life
the K/T boundary; instead, there is a gradual elimination of more specialized and generally rare taxa below the K/T boundary. Moreover, all dominant species survive well into the Tertiary and die out as the diversity of new Tertiary species ...
autorPanel on Effects of Past Global Change on Life, Commission on Geosciences, Environment and Resources, Division on Earth and Life Studies, 1995
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The Cretaceous World
10.3.1 The microfossil record Six groups of microfossils have been the subject of extensive study in attempts to unravel the pattern of extinction at the K/T boundary. For three of these groups — the calcareous nanofossils known as coccoliths, ...
autorP. W. Skelton, 2003
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Paleobotany and the Evolution of Plants
When the dust cloud settled an iridium- rich layer resulted which marks the K/T boundary at the end of the Cretaceous. Hickey (1984) makes the point, after studying the fossil plant record of horizons associated with the K/T boundary, that the ...
autorWilson Nichols Stewart, 1993
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The Beginning of the Age of Mammals
Sillustania, a putative polydolopoid based on isolated teeth from Chulpas, Peru, was initially thought to date from Cretaceous/Tertiary (K/T) boundary strata ( Crochet and Sigé, 1996); but it is now believed to be of late Paleocene or earliest  ...
autorKenneth D. Rose, 2009
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Impact Stratigraphy: The Italian Record
The K/T boundary clay layer of the Gubbio "facies" is dark red, with a thin gray- green sole at the base (Fig. 5.7.2.1). The white color of the top Cretaceous limestone has been attributed to iron reduction and leaching, and consequent bleaching ...
autorAlessandro Montanari, Christian Koeberl, 2000
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10 NEWS ITEMS WHICH INCLUDE THE TERM «K/T BOUNDARY»

Find out what the national and international press are talking about and how the term K/T boundary is used in the context of the following news items.
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Canadian Scientists Discovered This Astonishing New Species Of …
... went extinct millions of years before the chasmosaurines that were wiped out with the rest of the non-avian dinosaurs at the K/T boundary. «Forbes, Jun 15»
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Why Dinosaurs Would Have Never Built Spaceships
... the correct terminology is “avian” dinosaur; to distinguish them from non-avian dinosaurs which disappeared after the K/T boundary extinction ... «Forbes, May 15»
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These 7 Animals Survived What Dinosaurs Couldn't
About 50 percent of the planet's animal and plant life survived the Cretaceous-Tertiary mass extinction, also known as the K/T boundary. «Huffington Post, Apr 15»
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Did a massive volcanic eruption in India kill off the dinosaurs?
The Cretaceous/Tertiary boundary, usually referred to as the K/T boundary (the K is from the German word for Cretaceous), is clearly marked in ... «Washington Post, Dec 14»
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High school students experience paleontology
Anything above the iridium layer is called the K/T Boundary or Cretaceous-Tertiary extinction line. Since everything died at the point of the ... «Gasconade County Republican, Aug 14»
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Clocks Versus Rocks
That is, someone has to go and find a placental fossil that clearly originated from before the K/T boundary. “The debate is getting a little ... «Scientist, Jan 14»
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'Anthropocene' Period Would Recognize Humanity's Impact on Earth
Geologically, will it be an event like the K/T boundary [which marks the extinction of the dinosaurs 65 million years ago], an epoch like the ... «Space.com, Jul 13»
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The Anthropocene: Humankind as a Turning Point for Earth
Geologically, will it be an event like the K/T boundary, an epoch like the Paleocene, or a transition like the origin of life? I think it will either be a ... «Astrobiology Magazine, Jun 13»
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What Really Doomed the Dinosaurs? It's Still a Big Question.
(Paleontologists have dropped the Victorian term “Tertiary” for the past 66 million years, so the K/T boundary, with the “K” from the German term ... «Slate Magazine, Feb 13»
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Drilling for dinosaur death: the Joides Resolution finds extinction in …
Here in Mexico, every ¿genius¿ refers to K/T boundary, as caused by the Chicxolub asteroid impact, in the Yucatan Península. But, some very ... «Deep-Sea News, Jul 12»
APA
REFERENCE
«ENGLISH DICTIONARY. K/t boundary [online] - Edition 3.3 (Dec 2016). Available <http://englishdictionary.education/en/kt-boundary> »
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