Meaning of "sea-floor spreading" in the English dictionary

PRONUNCIATION OF SEA-FLOOR SPREADING

ˈsiːˌflɔː

GRAMMATICAL CATEGORY OF SEA-FLOOR SPREADING

Sea-Floor spreading is a noun.

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.

WHAT DOES SEA-FLOOR SPREADING MEAN IN ENGLISH?

Seafloor spreading

Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. Basaltic magma rises up the fractures and cools on the ocean floor to form new sea floor. Older rocks will be found farther away from the spreading zone while younger rocks will be found nearer to the spreading zone. Earlier theories of continental drift were that continents "ploughed" through the sea. The idea that the seafloor itself moves as it expands from a central axis was proposed by Harry Hess from Princeton University in the 1960s. The theory is well-accepted now, and the phenomenon is known to be caused by convection currents in the plastic, very weak upper mantle, or asthenosphere.

Definition of sea-floor spreading in the English dictionary

The definition of sea-floor spreading in the dictionary is a series of processes in which new oceanic lithosphere is created at oceanic ridges, spreads away from the ridges, and returns to the earth's interior along subduction zones Also called: ocean floor spreading.

TRANSLATION OF SEA-FLOOR SPREADING

Find out the translation of sea-floor spreading to 25 languages with our English multilingual translator.

The translations of sea-floor spreading from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «sea-floor spreading» in English.

• Translator English - Chinese: 海底扩张
• Translator English - Spanish: el piso del océano
• English: sea-floor spreading
• Translator English - Hindi: समुद्र तल के प्रसार
• Translator English - Arabic: قاع البحر نشر
• Translator English - Russian: морского дна распространения
• Translator English - Portuguese: mar - chão espalhando
• Translator English - Bengali: সাগরতলের প্রসারণ
• Translator English - French: expansion des fonds océaniques
• Translator English - Malay: Menyeberang lantai laut
• Translator English - German: Meeresboden Verbreitung
• Translator English - Japanese: 海底拡散
• Translator English - Korean: 해저 확산
• Translator English - Javanese: Nyebarake segara
• Translator English - Vietnamese: đáy biển lan rộng
• Translator English - Tamil: கடல் மாடி பரவுகிறது
• Translator English - Marathi: समुद्रमार्ग प्रसार करीत आहे
• Translator English - Turkish: deniztabanı yayılması
• Translator English - Italian: diffusione del fondo marino
• Translator English - Polish: morze piętrze rozprzestrzeniania
• Translator English - Ukrainian: морського дна поширення
• Translator English - Romanian: mare - etaj răspândire
• Translator English - Greek: διάδοση της θάλασσας - όροφο
• Translator English - Afrikaans: see - vloer versprei
• Translator English - Swedish: havsbotten spridning
• Translator English - Norwegian: havbunnsspredning

10 ENGLISH BOOKS RELATING TO «SEA-FLOOR SPREADING»

Discover the use of sea-floor spreading in the following bibliographical selection. Books relating to sea-floor spreading and brief extracts from same to provide context of its use in English literature.

The Sea Floor: An Introduction to Marine Geology

What, then, about proof for sea-floor spreading? Since 1968, the year in which several major articles appeared on the subject, "sea-floor spreading" has joined the various other propositions about the Earth which are accepted as fact. Why can ...

Eugen Seibold, Wolfgang H. Berger, 1996

Laboratory Exercises to Accompany Invitation to Oceanography

Average rate of sea floor spreading is equal to the distance the rocks have traveled from the rift valley divided by the time it has taken them to reach the point where they are located. Average Rate of Sea Floor Spreading = Distance/Time ...

Pinet, 2006

Geological Survey Bulletin

06329 Sea-floor spreading, concept questioned: Belousov,V.V. 06328 Sea-floor spreading, continental drift: Marvin, Ursula. 02084 Sea-floor spreading, dike injection, model: Harrison, C. G. A. 00654 Sea-floor spreading, dilational convection: ...

‎1949

Holmes' Principles of Physical Geology

Indeed as Keith Runcorn has stated Holmes' concept 'in all the essentials is the sea floor spreading theory'. Since 1964 there has been a complete change of viewpoint relating to continental drift, arising out of the wealth of new magnetic data ...

Peter MacLaren Donald Duff, Donald Duff, 1993

The Magnetic Field of the Earth: Paleomagnetism, the Core, ...

5.2.2 Sea-Floor Spreading The sea-floor spreading hypothesis was first formulated by Hess (1960, 1962). The midocean ridge system, which circulates the globe, is the site of the rising limbs of mantle convection cells where hot magma comes ...

Ronald T. Merrill, M. W. McElhinny, Phillip L. McFadden, 1998

Atlas of Continental Displacement: 200 Million Years to the ...

Crustal plates and sea-floor spreading in the southeastern Pacific. Antarctic Res. Ser. Washington 15, 229-237. Herron. E. M. 1972. Sea-floor spreading and the Cenozoic history of the East Central Pacific. Bull. Geo/. Soc. Am. Boulder 83.

H. G. Owen, 1983

Sciences of the Earth: A-G

The theory of sea-floor spreading gained acceprance with the confitmation of the Vine- Matrhews-Modey hyporhesis and Wilson's idea of transform faulrs, irs two difficulty- free solurions. In patticulat, what gained acceprance were those patrs ...

Gregory Good, 1998

Physics for OCR A for Separate Award

Even during World War II, he was able to conduct echo-sounding surveys in the Pacific while cruising from one battle to the next. Hess' research resulted in a ground-breaking hypothesis that later would be called sea-floor spreading. In 1962 ...

Sandra Mitchell, Chris Sherry, 2001

New Concepts of Sea Floor Evolution: Regional Observations ...

Sea floor spreading, topography and the second layer. Science, 157, 923-924. Menard, H. W., and T. Atwater, 1968. Changes in direction of sea floor spreading. Nature, 219, 463-467. Miller, J. A., and P. E. Brown, 1965. K-A studies in Scotland  ...

Arthur E. Maxwell, Edward Bullard, J. Lamar Worzel, 1971

Physics for OCR A for Double Award

Even during World War II, he was able to conduct echo-sounding surveys in the Pacific while cruising from one battle to the next. Hess' research resulted in a ground-breaking hypothesis that later would be called sea-floor spreading. In 1962 ...

Sandra Mitchell, Chris Sherry, 2001

3 NEWS ITEMS WHICH INCLUDE THE TERM «SEA-FLOOR SPREADING»

Find out what the national and international press are talking about and how the term sea-floor spreading is used in the context of the following news items.

Earth science: How plate tectonics clicked

The idea, which his colleague Robert Dietz christened 'sea-floor spreading', explained the old geological observations and the new geophysical ones, but it did ... «Nature.com, Sep 13»

Enceladus has 'spreading surface'

The observation on Earth that the sea floor is splitting at mid-ocean ridges and ... On Earth, sea-floor spreading is fuelled by molten rock upwelling from deep ... «BBC News, Dec 08»

Sea floor records ancient Earth

A sliver of four-billion-year-old sea floor has offered a glimpse into the inner ... "What this tells you unequivocally is that the process of sea-floor spreading that we ... «BBC News, Mar 07»