By Gianni Galli

ISBN-10: 0387562311

ISBN-13: 9780387562315

Combining box study of outcrop geology and investigating the hot formation of carbonate rocks in coastal environments the writer provides an creation in series stratigraphy. utilizing machine simulations the e-book makes a speciality of 4 questions, concerning the geometry of carbonate wedges, sequences similar with geotectonic cycles, their impact through geoidal pulses and the decision of those geoidal pulse distribution in geological time. Examples from the Alps and Florida exhibit that ramps and divergent styles, megabreccias, drowning of carbonate structures and so on. are result of worldwide momentary sea point falls, interpreted as geoidal eustasy. This quantity could be a fruitful complement for the translation and knowing of series stratigraphic sections not just for scientists and scholars but in addition for researchers within the oil and gasoline undefined.

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Example text

Ravinement surface A ravinement surface (Stamp,1922) is a f o r m e r s u b a e r i a l s u r f a c e transformed into a marine surface by erosional shoreface r e t r e a t . It is a f l o o d i n g surface above a former subaerial surface. This discontinuity surface underlies the s h e l f m a r g i n s y s t e m t r a c t a n d r e s u l t s f r o m a s l o w r a t e of s e a - l e v e l rise. Transgressive surface A transgressive surface is a p l a n a r surface overlain by t h e transgressive system tract.

Younger units are p r o g r e s s i v e l y t h i n n e r u p w a r d and b a s i n w a r d as a result of b a s i n starvation. J SUBSIDENCE 'I i I I I I I , , ' I ~ I l Uplift 1 ~ I ~ , " - ~ I Susidence I RATE OF EUSTATIC CHANGE l Fall ~ I I Rise RATE OF SUBSIDENCE t I i I. lI Fall i = RATE OF RELATIVE SEA-LEVEL CHANGE I I I I I I ! I -I I ! ,1988). of eustacy and T h e m a x i m u m f l o o d i n g s u r f a c e , or d o w n l a p s u r f a c e , s e p a r a t e s the transgressive f a c i e s t r a c t f r o m the o v e r l y i n g highstand facies tract.

It m a r k s a r a p i d increase in t h e rate of sea-level rise and occurs within marine lagoonal facies, separating different lithofacies. The transgressive surface may itself represent the transgressive system tract when the sea-level r i s e is g e o l o g i c a l l y instantaneous. In s u c h c a s e s t h i s s u r f a c e is d i r e c t l y o v e r l a i n by t h e h i g h s t a n d s y s t e m tract.

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Temporal and spatial patterns in carbonate platforms by Gianni Galli

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