ma
English translation: Ma (Mega annum, million of years)
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| 10:31 Dec 17, 2010 |
| Spanish to English translations [PRO] Tech/Engineering - Geology / Flood Risk Assessment | |||||||
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|  Selected response from: Andrés Martínez Spain Local time: 18:42 | ||||||
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| Summary of answers provided | ||||
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| 4 +3 | Ma (Mega annum, million of years) |
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| 4 -1 | millennnia |
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| 4 -1 | ya |
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| Discussion entries: 1 | |
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Answers
12 mins confidence: 
peer agreement (net): -1
peer agreement (net): -1millennnia Explanation: I think the term millennia can be used rather than writing out the whole number, although I do not know of any abbreviation for it. In the web reference I attached they use Ma for a million years in English. Reference: http://sjg.lyellcollection.org/content/36/1/local/front-matt... |
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Notes to answerer
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9 mins confidence: peer agreement (net): -1
peer agreement (net): -1ya Explanation: You do sometimes find "XX tya" for "XX thousand years ago", but it's nothing like as well established as the standard "mya" for "million years ago". It would be more normal to render this as "300,000-250,000 ya", in my opinion. Obviously "ya" subsumes "hace". -------------------------------------------------- Note added at 11 mins (2010-12-17 10:43:30 GMT) -------------------------------------------------- Sometimes with points (y.a.) but more often not. See eg. Estimated Age of Fossil: 50,000 ya * determined by Stratigraphic, faunal & archaeological data (1, 4). Species Name: Homo neanderthalensis http://www.mos.org/evolution/fossils/fossilview.php?fid=52 -------------------------------------------------- Note added at 13 mins (2010-12-17 10:45:33 GMT) -------------------------------------------------- Or here's one from good ol' wikipedia: 100,000 to 50,000 ya - Increased use of red ochre at several Middle Stone Age sites http://en.wikipedia.org/wiki/User:Muntuwandi/The_evolutionar... -------------------------------------------------- Note added at 24 mins (2010-12-17 10:56:50 GMT) -------------------------------------------------- Well actually, yes, kyr does seem to be used too (sorry, I didn't know; I'm not a geologist either, though I read a lot about palaeoanthropology). Maybe geologists actually prefer it; they certainly seem to use it, about as often, from my searches (comparing "300 kya" with "300000 ya"). It makes perfect sense: k for 1000 (like people who tell you they earn 100 k a year. So it looks as though either will do you. The minimum change to your text would be with kya. -------------------------------------------------- Note added at 26 mins (2010-12-17 10:58:35 GMT) -------------------------------------------------- Neil: just seen your response to Patrick. Don't use "kya ago", just "kya"; "ago" is redundant, since the "a" stands for it. -------------------------------------------------- Note added at 30 mins (2010-12-17 11:02:23 GMT) -------------------------------------------------- You don't like "kya"? Nothing wrong with it that I can see. The great Luigi Cavalli-Sforza uses it (with points: k.y.a.) in his The History and Geography of Human Genes (available in Google Books). |
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30 mins confidence: peer agreement (net): +3
peer agreement (net): +3Ma (Mega annum, million of years) Explanation: En inglés también se utiliza "Ma"; la a es del latín "annum". Y cuidado, la "m" corresponde a millones, no a milenios; el tiempo geológico es habitualmente mucho más largo. Puedes ver una discusión del tema aquí: http://www.geosociety.org/TimeUnits/viewComments.asp Geological Society of America Discussion of GSA Time Unit Conventions (...) http://www.wordiq.com/definition/Mega-annum Mega-annum, usually abbreviated as Ma, is a unit of time equal to one million years. It commonly used in geology and paleontology to signify time in the past. For example, 65 Ma indicates 65 million years ago. -------------------------------------------------- Note added at 37 mins (2010-12-17 11:09:24 GMT) -------------------------------------------------- Una referencia en tu contexto para que compruebes que se trata de millones de años y no de milenios. http://bioloweb.comli.com/apuntes_txt/biog/01-Biogeografia.p... (...) 4.3.- El Ciclo Hercínico: Orogenias originadas por el choque de las placas de Laurasia y Godwana durante la formación de PG2, hace unos 350 millones de años. -------------------------------------------------- Note added at 42 mins (2010-12-17 11:14:09 GMT) -------------------------------------------------- PDF] Evoluzione Geologica_eng_OK.cdr - [ Traducir esta página ] Formato de archivo: PDF/Adobe Acrobat - Vista rápida Strictly speaking, Hercynian history begins approximately 400 millions of years ago (from the Devonian period of the Palaeozoic era) through ... www.assocave.it/eng/public/Geological evolution.pdf http://bulletin.geoscienceworld.org/cgi/content/abstract/112... (...) The Hercynian cycle began in the early Paleozoic with episodes of continental rifting. Orogenic events occurred in the 390–300 Ma interval and affected both the Cadomian basement, which was heterogeneously reworked and overprinted, and the Paleozoic cover. -------------------------------------------------- Note added at 58 mins (2010-12-17 11:30:37 GMT) -------------------------------------------------- Otra referencia sobre el horizonte de tiempo del que hablamos, en tu contexto del ciclo hercínico. http://www.geoparquepirineos.com/contenidos.php?niv=1&cla=_2... El Paleozoico El ciclo geológico Hercínico empieza en Sobrarbe con el mar ocupando este territorio. Predomina la sedimentación de carbonatos (Devónico) y lutitas (Silúrico), con niveles de sedimentos detríticos que aumentaron durante el Carbonífero hace unos 300 millones de años, a causa de la orogenia Hercínica, hasta el final de la Era. La formación de la Pangea propició la colisión de placas tectónicas, formándose extensas cordilleras más altas que nuestros Pirineos, que fueros prácticamente arrasadas al final del Paleozoico. Durante la etapa de sedimentación del Ciclo Hercínico, se acumularon grandes cantidades de sedimentos en el fondo del mar o cerca de él. Al cabo de millones de años quedaron enterrados profundamente en el subsuelo y se transformaron en rocas sedimentarias. |
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