A case study in sequence stratigraphy and basin dynamics find, read and cite all the research you need. The shales found in the vaca muerta are from deep marine sediments that were deposited in a period. Vertical association of facies and stratal geometry allowed the definition of five stratigraphic sections, which were grouped into three depositional sequences related to third order cycles of sealevel change. A case study in sequence stratigraphy and basin dynamics find. Riccardib,c, javier martinchivelet d,e, jose lopezgomez d,e abstract.
Journal of the geological society of london 157 2, 433446. Aeolianfluvial interactions and highresolution sequence stratigraphy of a nonmarine lowstand wedge. Sequence sets, sequences, parasequences, facies architecture and rock types. Facies, geometries and sequence stratigraphy of the mixed. The tithonianberriasian vaca muerta, carrin cura and picun leufu formations in the southern neuquen basin were deposited on a tidally dominated, mixed carbonatesiliciclastic ramp. Geological survey assessed undiscovered, technically recoverable. Middle jurassic crustacean microcoprolites and their. Applying rock physics towards seismic characterization. Pdf the tithonian stratigraphy and ammonite fauna of the.
Sequence stratigraphy of a tidally dominated carbonate. A misunderstood exceptional source rock in the southern mendoza area of the neuquen basin, argentina diego a. The lowstand system tract lst lowstand systems tract is not present, the transgressive system tract tst true stratigraphic thickness, transgressive systems tract is very small and corresponds to the regional flood event. Veiga and others published the neuquen basin, argentina a case study in sequence stratigraphy and basin dynamics find, read and cite all the research you need on.
The nequen basin has a broadly triangular shape and is located between 32 and 40s latitude on the eastern side of the andes in argentina and central chile. The vaca muerta formation early tithonian early valanginian is a rhythmic succession of marls and limestones, cropping out in the neuquen basin, westcentral argentina. The deep seismic structure of the central neuquen basin, argentina alberto h. Veiga and others published the neuquen basin, argentina. Facies distribution and stratigraphic architecture of. The neuquen basin the neuquen basin was a retroarc basin developed in mesozoic times in the. The vaca muerta formation late jurassic early cretaceous. Depositional environments and hydrocarbon potential of the. Mar 01, 2000 the tithonianberriasian vaca muerta, carrin cura and picun leufu formations in the southern neuquen basin were deposited on a tidally dominated, mixed carbonatesiliciclastic ramp. These considerations suggest an insequence eastward progression of faulting during. Sedimentology and sequence stratigraphy of a tithonianvalanginian carbonate ramp vaca muerta formation. It usually involves subdividing a sedimentary basin fill into individual sequence s of deposition hence the name, which can then be linked to changes in the two fundamental parameters of sediment supply and accommodation the amount of space available for deposition. Opening and closure of the neuquen basin in the southern.
We analyse the volcanic stratigraphy of the lower jurassic synrift sequence of the sanico depocentre, which is a sub basin of one of the most important hydrocarbon basins in. Stratigraphy and sedimentology of the terminal fan of candeleros formation neuquen group, lower cretaceous, neuquen basin, provinces of neuquen and mendoza, argentina. Sedimentology, stratigraphic context, and implications of. Cretaceous mulichinco formation, neuquen basin, argentina. Laramide uplifts in western montana, and the williston basin and cedar creek anticline on the eastern border of the state. Marine upper jurassiclower cretaceous stratigraphy and biostratigraphy.
Sedimentology and sequence stratigraphy of a tithonian. Stratigraphy and sedimentology of the terminal fan of. Sequence stratigraphy of a tidallydominated carbonatesiliciclastic ramp. The lo valdes formation spans from the tithonian to the hauterivian based. The basin stratigraphy in the area consists of a continental sequence of initial sinrift precuyano deposited on halfgrabens, followed by strong cycles of marine. Andean stratigraphic record of the transition from backarc extension. The basin is one of the largest petroleum provinces in south america and includes a dramatic record of relative sea level changes as well as a unique and globally important palaeontological record.
The neuquen basin contains the most important hydrocarbon reservoirs in argentina and therefore is characterized by a profound knowledge of the sedimentation mechanisms and closure times. Each sequence is characterised by a basal transgressive interval tst followed by a highstand systems tract hst. The neuquen is a retroact foreland basin located in west central argentina. Generalized stratigraphic column for the central neuquen basin showing. Basinal, outer, middle, shallow and back ramp facies associations are recognized and a sequence stratigraphic analysis reveals that the ramp record consists of three shallowing. Initial rifting in the triassic was driven by extensional collapse of the permiantriassic orogen. The neuquen basin was a retroarc basin developed in mesozoic times along the pacific margin of south america western argentina.
Sequence stratigraphy of the mesozoic domeyko basin, northern. The tectonic history of the basin is polyphasic due to the occurrence of several compressional and extensional phases that led to different major orogenies ramos, 1999. Geological society, london, special publications, 252, 114. Tectonostratigraphic analysis of the late triassicearly. Garrido, gunter schweigert, and armin scherzinger with 30 gures and 1 table in memorian s ara b allent, john h. Paleoenvironmental evolution of the southern neuquen basin. Veiga and others published the neuquen basin, argentina a case study in sequence stratigraphy and basin. The neuquen basin in western argentina offers a variety of attractive hydrocarbon plays in both the jurassic and cretaceous sequences.
Pdf sedimentologic and sequence stratigraphic model of a. Sequence stratigraphy, a branch of sedimentary stratigraphy, uses the order strata accumulated in along with a framework of major depositional and erosional surfaces to interpret the depositional setting of clastic and carbonate sediments from continental, marginal marine, basin margins and downslope settings of basins. Opening and closure of the neuquen basin in the southern andes. In this study, the basin scale sequence stratigraphy and stratigraphic architecture of the unit was assessed by defining regional seismic and well sections along strike. Sedimentologic and sequence stratigraphic model of a. This lithostratigraphic unit was traditionally interpreted as basinal to. Seismic stratigraphy of carbonate depositional sequences. Zeller, michael, facies, geometries and sequence stratigraphy of the mixed carbonate siliciclastic quintuco vaca muerta system in the neuquen basin, argentina. Also we attempt understand the relationship between organic matter, facies, and sealevel changes. The neuquen basin of northern patagonia provides an excellent case study in basin analysis and sequence stratigraphy.
Sedimentologic and sequence stratigraphic model of a neocomian marine carbonatesiliciclastic ramp. It covers an area of over 120,000 km 2 and comprises a continuous record of up to 4000 meters of stratigraphy. The ammonite sequence in the agrio formation lower. Tracking sea bed topography in the jurassic neuquen basin. The tectonic evolution of the neuquen basin spans about 220 m. Basin configuration and characteristics of the generative sections. Pdf the neuquen basin, argentina a case study in sequence. The stratigraphy and the ammonite fauna of the vaca muerta and picun leufu formations outcropping along the transect portada covuncocerrito caracoles southcentral neuquen basin were studied by means of two representative sections. This book provides an overview of newly gathered material focusing on the opening and closure of the neuquen basin. The upper jurassiclower cretaceous interval in the neuquen basin, argentina, provides a good example of carbonate sedimentary response to eustatic sealevel change in a rifted basin that has produced hydrocarbons for over 50 years.
The tithonian stratigraphy and ammonite fauna of the transect portada covuncocerrito caracoles neuquen basin, argentina horacio parent, alberto c. National and global petroleum assessment assessment of. Aeolianfluvial interactions and highresolution sequence. Pdf sedimentology and sequence stratigraphy of a tithonian. The first corresponds to the gondwana orogeny, an extensional backarc regime that took.
National and global petroleum assessment assessment of continuous oil and gas resources in the. Facies distribution and stratigraphic architecture of continental to. The deep seismic structure of the central neuquen basin, argentina. Relative sealevel fall in the upper lower sinemurian, earliest pliensbachian, earliest aalenian. The basal transgressive sequence in this sector of the basin retains the characteristics of sourcerock constant across large areas. The detailed study of the lithological succession of the two sections has allowed to complete the formal subdivision of the vaca muerta formation by the. Read geology and hydrocarbon potential of the neuquen basin, journal of petroleum geology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Sequence stratigraphy sequence stratigraphic analysis has identified five exxontype unconformity bounded sequences which provide a time framework for the understanding of chronostratigraphic development of the domeyko basin fig.
The tithonian stratigraphy and ammonite fauna of the transect. It was driven by extensional forces during the late triassic and early jurassic from the permiantriassic orogenic belt. A series stratigraphic framework of lower and upper cretaceous rocks in central and eastern montana by steven m. The candeleros formation is represented by a succession of deposits that represent terminal fans starting to fill a foreland basin backarc during the albian. This period of extension was accommodated by inherited structural inhomogeneities and a southwestoriented extensional stress field. Stratigraphic framework of lower and upper cretaceous rocks. Mixed shortening and extension in neuquen basin, western argentina, 3436s. The deep seismic structure of the central neuquen basin. For many decades, this prevented on generating a basin scale evolutionary model of the unit. The neuquen basin is located in westcentral argentina, east of the andes mountain range, and it is the most proli.
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