Chronostratigraphy of the Upper Cretaceous high productivity sequence of the southern Tethys, Israel

Meilijson, Aaron; Ashckenazi-Polivoda, Sarit; Ron-Yankovich, Libby; Illner, Peter; Alsenz, Heiko; Speijer, Robert P.; Almogi‐Labin, Ahuva; Feinstein, Shimon; Berner, Zsolt; Püttmann, Wilhelm; Abramovich, Sigal

doi:10.1016/j.cretres.2014.04.006

Cited by 45 publications

(24 citation statements)

References 64 publications

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“…Early Permian to Middle Jurassic rifting led to the development of passive margins setting in the area, with Late Jurassic to Middle Cretaceous extensive shallow marine carbonate platforms bounded by deep marine basins [ Garfunkel , , ; Gardosh et al , ]. Convergence of the Eurasian and Afro‐Arabian plates prompted the Late Cretaceous to early Tertiary formation of a series of hundreds of meters tall, predominantly northeast‐southwest trending folds, related to a deformational belt generally known as the Syrian Arc [ Krenkel , ; Ben‐Avraham , ; Tibor and Ben‐Avraham , ; Eyal , ; Garfunkel , ; Gardosh et al , ; Gardosh and Tannenbaum , ; Meilijson et al , ]. This study focuses on an area underlain by the Delta Syrian Arc fold anticline [ Gardosh et al , ; Gardosh and Tannenbaum , ].…”

Section: Geological Backgroundmentioning

confidence: 99%

Internal deformation of the southeast Levant margin through continued activity of buried mass transport deposits

2017

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Mass transport deposits (MTDs) are commonly regarded as motionless evidences of past mass wasting events. Three‐dimensional seismic surveys acquired offshore central Israel reveal continued long‐lasting and even current deformation of >1.5 Myr old MTDs, now buried hundreds of meters beneath and still impacting the seafloor. Faulting and folding of the Messinian‐Pliocene unconformity (M), at the base of the studied interval, represent the possible impacts of tectonic and halokinematic deformation. However, an ~200 m thick continuous stratified unit straddles the M and entirely separates the overlaying Plio‐Quaternary sedimentary stack from underlying faulting. Overlaying and etched into this stratified unit are headscarp regions of two up to 450 m thick buried MTDs, characterized by distinct combinations of chaotic seismic reflections and typically ~1 km wide detached and rotated blocks. “Crowns” of growth faults emanate upward from these MTD headwalls, truncating and deforming the overburden and offsetting overlaying reflections by tens of meters up to ~100 m below the seafloor. Moreover, asymmetric sagging and faulting of the overburden mimic the layout and flow pattern of the MTDs and rafted blocks within, providing kinematic indications of combined compaction and lateral flow. These observations imply that the MTDs undergo continuous postslumping differential compaction, combined with lateral mobilization. Additional smaller and younger buried MTDs distributed within the overburden are observed to portray similar deformation kinematics. We suggest that the buried MTDs provide deformational foci and pathways for downslope internal collapse of the continental margin at large, offering a new possible mechanism of thin‐skinned extension.

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Section: Geological Backgroundmentioning

confidence: 99%

Internal deformation of the southeast Levant margin through continued activity of buried mass transport deposits

2017

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“…a; Lloyd, ; Trabucho Alexandre et al ., ; Meyer & Kump, ; Scotese, ). During the Late Cretaceous, such upwelling was responsible for the accumulation of organic rich sediments in the Levant margin (Ashckenazi‐Polivoda et al ., ; Schneider‐Mor et al ., ; Meilijson et al ., ). In this contribution, we investigate the depositional and palaeooceanographic dynamic of the southern Tethyan margin at the interface between the shelf and slope.…”

Section: Introductionmentioning

confidence: 97%

The drowning of a siliciclastic shelf: insights into oceanographic reconstructions of the northern Arabian Platform during the Early Cretaceous

Bialik

Waldmann

2017

Basin Research

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Barremian-Aptian sedimentary successions along the northern Arabian margin have been described as a transition from a siliciclastic to a carbonate-dominated marine environment, deposited upon a low-relief shelf or platform formed as a consequence of continuous regional subsidence. A long (360 m) core from northern Israel offers a unique look at this transition, providing valuable insights for the palaeoceanography, geometry and ventilation conditions that lead to Oceanic Anoxic Event 1 (OAE1) in this region. Results from high-resolution elemental, mineralogical, sedimentological and petrophysical analyses carried out revealed the emplacement of abundant mass-transport deposits (MTDs) during the Late Barremian and the Aptian. The transplanted units are characterized by fine grained calcareous shales with elevated organic matter, sulphur and iron contents. The scarcity or absence of bioturbation in the disturbed sequences provides a hint to the sediment/water interface conditions. However, a decrease in sulphur and iron occurring at the contact between the shales and the MTDs is explained as increased oxic conditions at the sediment-water interface as a result of turbulence and mixing associated with the descending sediment masses. Such recurrent events ventilation of the low-energy basinal environment during the Late Barremian and Aptian, predate the wide-scale establishment of OAE1 in the northern Arabian margin. Moreover, the identification of coarse-grained MTDs within deep-water calcareous sediments indicates a much steeper gradient of the northern Arabian margin, challenging previous studies.

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“…There are some occurrences of marl in the Ghareb Formation and chert in the lower Mishash Formation (Meilijson et al . ; Burg and Gersman ).…”

Section: Introductionmentioning

confidence: 97%

“…The organic-rich chalk studied here includes the Ghareb Formation and the underlying Mishash Formation of the Mount Scopus Group (Late Cretaceous). There are some occurrences of marl in the Ghareb Formation and chert in the lower Mishash Formation (Meilijson et al 2014;Burg and Gersman 2016).…”

Section: Introductionmentioning

confidence: 99%

Static and dynamic elastic moduli of organic‐rich chalk

Shitrit

Hatzor

Feinstein

et al. 2019

Geophysical Prospecting

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The elastic moduli and anisotropy of organic‐rich rocks are of great importance to geoengineering and geoprospecting of oil and gas reservoirs. In this paper, we probe into the static and dynamic moduli of the Ghareb–Mishash chalk through laboratory measurements and new analytical approaches. We define a new anisotropy parameter, ‘hydrostatic strain ratio’ (Ω), which describes the differential contraction of anisotropic rocks consequent to hydrostatic compression. Ω depends on the C11, C12, C13 and C33 stiffness constants of a transversely isotropic material, and therefore enables a unique insight into the anisotropic behaviour of TI rocks. Ω proves more sensitive to anisotropy within the weak anisotropy range, when compared with Thomsen's ε and γ parameters. We use Ω to derive static moduli from triaxial compression tests performed on a single specimen. This is done by novel employment of a hydrostatic‐deviatoric combination for transversely isotropic elastic stiffnesses. Dynamic moduli are obtained from acoustic velocities measurements. We find that the bedding‐normal velocities are described well by defining kerogen as the load‐supporting matrix in a Hashin–Shtrikman model (‘Hashin–Shtrikman (HS) kerogen’). The dynamic moduli of the Ghareb–Mishash chalk in dry conditions are significantly higher than the static moduli. The dynamic/static moduli ratio decreases from ∼4 to ∼2 with increasing kerogen content. Both the static and dynamic moduli decrease significantly with increasing porosity and kerogen content. The effect of porosity on them is two times stronger than the effect of kerogen.

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Chronostratigraphy of the Upper Cretaceous high productivity sequence of the southern Tethys, Israel

Cited by 45 publications

References 64 publications

Internal deformation of the southeast Levant margin through continued activity of buried mass transport deposits

Internal deformation of the southeast Levant margin through continued activity of buried mass transport deposits

The drowning of a siliciclastic shelf: insights into oceanographic reconstructions of the northern Arabian Platform during the Early Cretaceous

Static and dynamic elastic moduli of organic‐rich chalk

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