Turbidite Systems and Their Relations to Depositional Sequences

Mutti, Emiliano

doi:10.1007/978-94-017-2809-6_4

Cited by 281 publications

(273 citation statements)

References 9 publications

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“…FO = first occurrence; LO = apron surrounding the arc volcanoes, perhaps associated with tectonic rejuvenation of the flanks of the basin. The global sea level was fairly low at this time (Haq et al, 1987), which may have also aided the delivery of coarser grained material to the basin (Mutti, 1985). Within error limits for biostratigraphic and paleomagnetic datums, this upper conglomeratic interval (28 ± 0.5 Ma; Fig.…”

Section: Unit Vmentioning

confidence: 87%

Site 793

1990

Proceedings of the Ocean Drilling Program

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We spudded Hole 793A with the advanced hydraulic piston corer (APC) at 1745 hr on 26 May 1989 and cored 99.7 m with 79% recovery until an overpull and resulting severed piston rod ended operations at the hole. A reentry cone was spudded into the sediment at 0930 hr on 28 May, and Hole 793B was begun by drilling a 14-3 A-in. hole to 586.5 mbsf, which was then lined with 46 joints (562.66 m) of ll-3 /4-in. casing. We obtained special permission not to core this section so that we could meet the deep stratigraphic and basement objectives in the time available. We took 114 rotary core barrel (RCB) cores during the next 12 days, with a pipe trip and subsequent reentry after Core 126-793B-87R (1422.9 mbsf) to change the drill bit. At 0320 hr on 14 June, Hole 793B reached a total penetration of 1682 mbsf, with 74% recovery in the sediments above 1403.9 mbsf and 33% recovery in the basement below.Following a pipe trip to release the bit and add a casing landing tool, a full suite of geophysical and geochemical logs, including the formation microscanner (FMS) and vertical seismic profiling (VSP), was planned. Several bridges were encountered, which required clearing with the pipe, so the hole was logged in stages. The density tool failed. The other physical property and temperature tools logged the intervals 1565.6-1034, 947.8-775.9, and 708.2-586.5 mbsf. The FMS was run from 1539 to 1034 mbsf and from 764.1 to 586.5 mbsf. The geochemistry combination was used in the open hole from 1531 to 1034 mbsf, and through the pipe from 917 to 586.5 mbsf. Poor clamping, a result of formation conditions, limited an attempted VSP to only a few good recording levels.We defined seven lithostratigraphic units at Site 793: Unit I (0-98.9 mbsf): Quaternary pumiceous gravel, sandy gravel, and vitric sand; nannofossil clay, clayey silt, and silty clay; and nannofossil-rich clayey silt and clay, with rare vitric sand and silt.Unit II (586.5-591 mbsf): olivine-clinopyroxene diabase. Unit III (591-735.7 mbsf): lower to middle Miocene nannofossilrich silty claystone, silty claystone, nannofossil-rich and nannofossil claystone, vitric siltstone and sandstone, clayey siltstone, and nannofossil-rich clayey siltstone.Unit IV (735.7-759 mbsf): lower Miocene claystone, nannofossil and nannofossil-rich claystone, and vitric siltstone. SITE 793Unit V (759-1373.1 mbsf): lower to upper Oligocene vitric sandstone, pumiceous sandstone, granule-to fine-pebble conglomerate, siltstone, clayey siltstone, and silty claystone.Unit VI (1373.1-1403.9 mbsf): upper-lower Oligocene(?) very poorly sorted volcanic breccia with sandy matrix, and mixed fresh to altered clasts of mainly plagioclase-rich andesite.Unit VII (1403.9-1678.4 mbsf): upper-lower Oligocene(?) breccias and massive to pillowed flows of porphyritic and aphyric clinopyroxene-orthopyroxene basaltic andesites and andesites. Note that this unit is subdivided into 17 igneous rock units in the "Igneous Petrology" section (this chapter).We dated Units I and III-V by means of nannofossils, radiolarians (Unit...

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Section: Unit Vmentioning

confidence: 87%

Site 793

1990

Proceedings of the Ocean Drilling Program

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“…Two detailed partial stratigraphic columns were previously measured and studied by GuW�rrez Alonso et al (2000), who identified fades indicating various settings within a deep submarine fan model (mainly lower-middle fan and upper fan, with a few fades representing the slope). The identified fades' association suggests a type 11 turbiditic system (Mutti, 1985), mostly formed by channel and sand lobe complexes.…”

Section: Geological Setting Of the Arc-derived Terranementioning

confidence: 89%

A peri-Gondwanan arc in NW IberiaI: Isotopic and geochemical constraints on the origin of the arc—A sedimentary approach

et al. 2010

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“…According to three aspects of Mutti's classification of turbidite systems (Mutti 1979 and1985) the analyzed turbiditic current in the Sava Field can be defined as an intermediate type between a middle and a small system in the distal part of Type-II (transition channel-lobes). It is similar to Type-III (channel-levee complexes) and the facies is predominantly characterized by pelitic sediments at In the lower reservoir the channel bifurcates but the branches do not separate completely from each other; rather they interweave or take on a lobe shape.…”

Section: Characterization Of Clastic Sedimentary Enviroments By Clustmentioning

confidence: 99%

Characterization of clastic sedimentary enviroments by clustering algorithm and several statistical approaches — case study, Sava Depression in Northern Croatia

Horváth¹,

Malvić²

2013

Central European Geology

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This study demonstrates a method to identify and characterize some facies of turbiditic depositional environments. The study area is a hydrocarbon field in the Sava Depression (Northern Croatia). Its Upper Miocene reservoirs have been proved to represent a lacustrine turbidite system. In the workflow, first an unsupervised neural network was applied as clustering method for two sandstone reservoirs. The elements of the input vectors were the basic petrophysical parameters. In the second step autocorrelation surfaces were used to reveal the hidden anisotropy of the grid. This anisotropy is supposed to identify the main continuity directions in the geometrical analyses of sandstone bodies. Finally, in the description of clusters several parametric and nonparametric statistics were used to characterize the identified facies. Obtained results correspond to the previously published interpretation of those reservoir facies.

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Turbidite Systems and Their Relations to Depositional Sequences

Cited by 281 publications

References 9 publications

Site 793

Site 793

A peri-Gondwanan arc in NW IberiaI: Isotopic and geochemical constraints on the origin of the arc—A sedimentary approach

Characterization of clastic sedimentary enviroments by clustering algorithm and several statistical approaches — case study, Sava Depression in Northern Croatia

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