Source rocks and related petroleum systems of the Chelif Basin, (western Tellian domain, north Algeria)

Arab, Mohamed; Bracène, Rabah; Roure, François; Zazoun, Réda Samy; Mahdjoub, Yamina; Badji, Rabie

doi:10.1016/j.marpetgeo.2015.03.017

Cited by 30 publications

(25 citation statements)

References 37 publications

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“…Initial values for the soil properties in the study area (V p , V s , r, H) were taken from the data of previous geological and geophysical studies performed in Lower Cheliff Basin and Chlef City and summarised in previous sections (S.N. REPAL 1952;Talaganov et al 1982;WCC 1984;Arab et al 2015). The values were input into the Dinver software for the theoretical RWE In general V s varies between 1800-3000 m/s, but particularly for the two close zones Z′2 and Z′′2, V s of the hard rock ranges between 2000-2500 m/s to constrain better the results of the inversion.…”

Section: Input Modelsmentioning

confidence: 90%

“…REPAL () measured a thickness of ~280 m for these upper Miocene sediments in the southern part of downtown Chlef, which consists of a thin layer of conglomerate and a series of marls that experienced sandblasting. According to Arab et al (), the Mesozoic substratum consists mainly of sandstones overlain by an assemblage of limestones, shales, and marls. The spatial variation in the

V_{p}

structure in the substratum of the Lower Cheliff Basin is also defined from seismic profiles, ranging from 2600 m/s in the north to 3000 m/s in the south.…”

Section: Introductionmentioning

confidence: 99%

“…Initial values for the soil properties in the study area (

V_{p}

V_{s}

, ρ ,

H

) were taken from the data of previous geological and geophysical studies performed in Lower Cheliff Basin and Chlef City and summarised in previous sections (S.N. REPAL ; Talaganov et al ; WCC ; Arab et al ). The values were input into the Dinver software for the theoretical RWE calculations.…”

Section: Introductionmentioning

confidence: 99%

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S‐wave velocity structure of Chlef City, Algeria, by inversion of Rayleigh wave ellipticity

Layadi

Semmane

Yelles‐Chaouche

2018

Near Surface Geophysics

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Chlef City, Algeria, which is located in the Lower Cheliff Basin, is vulnerable to seismic hazards. Since there is no constrained velocity model for the Lower Cheliff Basin, particularly at greater depths, we conducted an ambient vibration investigation to map the shear‐wave velocity structure beneath the city, with the primary goal of supplementing the existing microzonation studies. Here, we inverted the Rayleigh wave ellipticity measurement curve of ambient vibrations measurements from 120 sites in Chlef City to estimate the shear‐wave velocity structure. The study area was subdivided into six zones based on similarities between the observed horizontal‐to‐vertical spectral ratio of the ambient vibrations curves. Our resultant shear‐wave velocity models show that the observed fundamental frequencies (0.3–1.6 Hz) are related to a thick layer (~800 m) of upper Miocene deposits, where Vs=1000 m/s on average. Generally, the Mesozoic basement shows Vs>2000 m/s. Moreover, the clear peaks observed at higher frequencies and only in the northwest part of the city are related to a thin layer of Quaternary deposits (Vs= ∼2000 m/s).

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Section: Input Modelsmentioning

confidence: 90%

V_{p}

structure in the substratum of the Lower Cheliff Basin is also defined from seismic profiles, ranging from 2600 m/s in the north to 3000 m/s in the south.…”

Section: Introductionmentioning

confidence: 99%

“…Initial values for the soil properties in the study area (

V_{p}

V_{s}

, ρ ,

H

Section: Introductionmentioning

confidence: 99%

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S‐wave velocity structure of Chlef City, Algeria, by inversion of Rayleigh wave ellipticity

Layadi

Semmane

Yelles‐Chaouche

2018

Near Surface Geophysics

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“…The source-rock potential of MSC deposits has been documented in several areas: the Chelif Basin (northern Algeria: Arab et al 2015), the Prinos-Kavala Basin (northern Aegean: Kiomourtzi et al 2008), the island of Zakynthos and the Hellenic Trench (Greece: Maravelis et al 2013Maravelis et al , 2015, the Ionian Basin (Deroo et al 1978), the southern Apennines (Guido et al 2007), and the northern Apennines (Manzi et al 2007). However, a full knowledge of the Messinian source rocks is lacking, mainly due to the difficulty in organizing the available scattered data and observations into a comprehensive and detailed stratigraphic framework.…”

Section: The Messinian Source Rocksmentioning

confidence: 99%

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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“…The study site covers the Arzew petrochemical platform area, that covers a part of the two Arab et al, 2015); 2b. Pedological map issued from the general geology map designed by Fisher et Doumergue (1900) and locations of the sampling stations (S1 to S6)…”

Section: Study Areamentioning

confidence: 99%

Spatial contamination and health risks of heavy metal(loid)s in surface soils from a petrochemical complex in the north-eastern region of Algeria

Hayat

Vassalo

Hadjel

et al. 2019

Int. J. Environ. Sci. Technol.

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The spatial distribution patterns, origins and environmental and health risks of metal trace elements (As, Cd, Co, Cr, Cu, Ni, Pb, Zn) have been analyzed through the spiking and the analysis of 84 soils sampled in the region of Arzew (Algeria). This city gathers one of the biggest petroleum harbors of Algeria and gathers in the same platform several industries, coexisting with residential and agricultural areas. The mean concentration of all the metals studied exceed their corresponding backgrounds levels and/or exceed the ecological Predicted No effect Concentration (PNEC) values. The geo-accumulation and the potential ecological risk indices indicate a low to moderate risk for As, Co, Cu, Ni and Zn, and a moderate to considerable risk for Cr and Pb. According to the health risk assessment results, the carcinogenic risks due to Cr exceed the acceptable level in all the functional areas, and when considering combined effects of metals, the hazard index obtained show a high potential carcinogenic risk to the local children.

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Source rocks and related petroleum systems of the Chelif Basin, (western Tellian domain, north Algeria)

Cited by 30 publications

References 37 publications

S‐wave velocity structure of Chlef City, Algeria, by inversion of Rayleigh wave ellipticity

S‐wave velocity structure of Chlef City, Algeria, by inversion of Rayleigh wave ellipticity

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

Spatial contamination and health risks of heavy metal(loid)s in surface soils from a petrochemical complex in the north-eastern region of Algeria

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