Messinian and Pliocene erosional surfaces in the Po Plain-Adriatic Basin: Insights from allostratigraphy and sequence stratigraphy in assessing play concepts related to accommodation and gateway turnarounds in tectonically active margins

Rossi, Massimo; Minervini, Matteo; Ghielmi, Manlio; Rogledi, Sergio

doi:10.1016/j.marpetgeo.2014.12.012

Cited by 46 publications

(51 citation statements)

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“…In this case, it appears as a thin seismic unit consisting of one or two parallel, high-amplitude reflectors, similar to the RLG and UG units, where the latter are thinner. However, the PLG unit can be well identified in well logs owing to its peculiar blocky pattern, as documented in many offshore and onshore boreholes Lugli et al 2010;Rossi et al 2015). Where high-resolution seismic profiles are available, PLG evaporites appear as a horizontal bedded unit (BU of Lofi et al 2011) with a conformable base and an erosional top (e.g.…”

Section: Seismic and Well Log Expression Of Evaporitic Unitsmentioning

confidence: 98%

“…The water depth limiting the deposition of the bottom-grown gypsum (<200 m, including areas beyond the shelf break) is suggested by the common occurrence of photosynthetic microorganism communities trapped within primary gypsum crystals (mainly cyanobacteria: Panieri et al 2010). MSC onshore records clearly show that in deeper and/or unsilled sub-basins, evaporite-free deposits accumulated, mainly consisting of organic-rich shales and dolostones barren of normal marine fossils (Manzi et al 2007;Lugli et al 2010;Dela Pierre et al 2011;Ghielmi et al 2013;Rossi et al 2015).…”

Section: An Alternative Scenario: Stratigraphic Frameworkmentioning

confidence: 99%

“…the MES, Zanclean base), that can be easily recognized from 285 The Messinian salinity crisis: petroleum systems available seismic and borehole data, and which allows a sequence stratigraphic approach (Roveri et al 2008c;Rossi et al 2015). The three stages of the model are characterized by distinctive Sr isotope values that can be easily obtained by analysing the evaporite rocks and the fossils from cores or cuttings.…”

Section: The Onshore Lesson: Clues For Shallow To Deep Correlationsmentioning

confidence: 99%

“…Ochoa et al 2015), where outcrop observations and complete subsurface data (seismics and boreholes) are available, it has been documented that the PLG evaporites are absent in deep-water and/or unsilled settings during MSC stage 1 (Manzi et al 2007;Lugli et al 2010;Dela Pierre et al 2011;Ghielmi et al 2013;Rossi et al 2015). Two different models have been proposed so far to explain this fact.…”

mentioning

confidence: 99%

“…Locally, the RLG unit may mainly consist of terrigenous sediments (i.e. turbiditic sandstones of the Apennine foreland system depocentres -the Laga pro parte and Fusignano formations; Roveri et al 2001;Manzi et al 2005;Rossi et al 2015). This stage, which is considered the acme of the crisis, encompasses a very short time window, according to cyclostratigraphic considerations based on stage 1 (Roveri & Manzi 2006) and stage 3 cyclic patterns (Manzi et al 2009).…”

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confidence: 99%

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The Messinian salinity crisis: open problems and possible implications for Mediterranean petroleum systems

Roveri

Gennari

Lugli

et al. 2016

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A general agreement on what actually happened during the Messinian salinity crisis (MSC) has been reached in the minds of most geologists but, in the deepest settings of the Mediterranean Basin, the picture is still far from being finalized and several different scenarios for the crisis have been proposed, with different significant implications for hydrocarbon exploration. The currently accepted MSC paradigm of the 'shallow-water deep-basin' model, which implies high-amplitude sea-level oscillations (> 1500 m) of the Mediterranean up to its desiccation, is usually considered as fact. As a consequence, it is on this model that the implications of the MSC events on the Mediterranean petroleum systems are commonly based.In fact, an alternative, deep-water, non-desiccated scenario of the MSC is possible: it (i) implies the permanence of a large water body in the Mediterranean throughout the entire Messinian salinity crisis, but with strongly reduced Atlantic connections; and (ii) envisages a genetic link between Messinian erosion of the Mediterranean margins and deep brine development.In this work, we focus on the strong implications of an assessment of the petroleum systems of the Mediterranean and adjoining areas (e.g. the Black Sea Basin) that can be based on such a non-desiccated MSC scenario. In particular, the near-full basin model delivers a more realistic definition of Messinian source-rock generation and distribution, as well as of the magnitude of water-unloading processes and their effects on hydrocarbon accumulation.

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Section: Seismic and Well Log Expression Of Evaporitic Unitsmentioning

confidence: 98%

Section: An Alternative Scenario: Stratigraphic Frameworkmentioning

confidence: 99%

Section: The Onshore Lesson: Clues For Shallow To Deep Correlationsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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The Messinian salinity crisis: open problems and possible implications for Mediterranean petroleum systems

Roveri

Gennari

Lugli

et al. 2016

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Controls of a Triassic fan‐delta system, Junggar Basin, NW China

Jia

Zhang

Wang³

et al. 2018

Geological Journal

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Both sedimentology and sequence stratigraphy variability in the deltaic area are distinguished in the fan‐delta system of the Northwestern Junggar Basin. Sediment supply plays a significant role in controlling the fan‐delta petrology, evolution, and depositional processes and the delivery of sediment into deeper parts of the basin. The results of this study show that variations in the lithology of the sediment supply control the fan‐delta petrology and spatial and temporal variations in sediment supply influence the location and shifting of depocentres. A fining‐upward fan‐delta succession developed as accommodation rates outpaced the sediment supply rate. Frequent flood events were mostly recorded by sediment gravity flow deposits, which in turn influenced the geometry of the sandstone bodies and their reservoir quality. Hyperpycnal flow was a significant delta front process and an important mechanism for sediment delivery into deeper waters, favoured by the combination of denudation of coastal ranges and the fresh waters of the receiving basin. This study highlights that a detailed understanding of variations in sediment supply is essential to accurately predict sediment partitions in a delta system and the delivery of coarse‐grained sediments into deeper parts of lacustrine basins.

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An electrostratigraphic cross-section across the central Po plain: bearings on subsurface geology and hydrostratigraphy

Mele

Bersezio

Giudici

2018

Int J Earth Sci (Geol Rundsch)

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A 72-kilometers-long N-S cross-section was surveyed with Direct Current resistivity soundings through the Quaternary clastic infill of the Apennine foredeep in the Po plain of Lombardy (Northern Italy). The aims are: 1) to test the potential of DC resistivity methods at the regional scale; 2) to draw the electrostratigraphic picture of the basin fill, down to the pre-Quaternary substratum; 3) to refine and test the methodology and concepts of hierarchic electrostratigraphy at the basin scale; 4) to contribute to characterize the regional hydrostratigraphy of a relevant hydrogeological basin. 163 resistivity-versus-depth profiles with a maximum investigation depth of 450 m were obtained from Vertical Electrical Soundings. To draw the electrostratigraphic cross-section, the polarity of the resistivity contrast across resistivity interfaces (i.e., resistive over conductive layers or vice-versa) was considered and the discontinuities were correlated according to the persisting pattern form North to South. Doing so, the hierarchic assemblage of four major electrostratigraphic boundaries and the five intervening Groups of Electrostratigraphic Units (EsUs) was established. The resulting picture was compared to the available subsurface reconstructions from 2 literature, using the 1-D borehole data only to check the geophysical image at some random sample sites. The results show that the electrostratigraphic picture captures the geological and hydrostratigraphic complexity of the subsurface of the basin comparing well with the available direct subsurface geological and hydrostratigraphic reconstructions. At the regional scale of the cross-section, two hierarchic orders of EsUs and correlative boundaries could be drawn (1 st order Groups and 2 nd order individual EsUs), while the lowermost 3 rd order rank, the electrolayer, is recognised at the single VES sites only.

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Messinian and Pliocene erosional surfaces in the Po Plain-Adriatic Basin: Insights from allostratigraphy and sequence stratigraphy in assessing play concepts related to accommodation and gateway turnarounds in tectonically active margins

Cited by 46 publications

References 50 publications

The Messinian salinity crisis: open problems and possible implications for Mediterranean petroleum systems

The Messinian salinity crisis: open problems and possible implications for Mediterranean petroleum systems

Controls of a Triassic fan‐delta system, Junggar Basin, NW China

An electrostratigraphic cross-section across the central Po plain: bearings on subsurface geology and hydrostratigraphy

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