Depositional Model for Turbidite Lobes in Complex Slope Settings Along Transform Margins: The Motta San Giovanni Formation (Miocene—Calabria, Italy)
نویسندگان
چکیده
Intraslope lobes, or perched are attracting scientific interest because they represent a key archive between the shelf and deep basin plain when looking at complete source-to-sink depositional system across continental margin can form significant offshore hydrocarbon plays. In this study, we focus on detailed characterization of intraslope lobes Motta San Giovanni Formation (Miocene, Calabria), which were deposited in confined conditions during Miocene along transform margin. We determine typical facies associations stratigraphic architecture these using 3D digital outcrop model resulting from combined Uncrewed Aerial Vehicle (UAV) walking acquisition, together with sedimentological logging geological mapping. propose recognition criteria for identification including geometries, integrated within model. A comparison other well-known as well floor is finally discussed, to highlight peculiarities margins. The diagnostic types includes four main stages evolution: 1 ) Stage 1—isolated detached lobe precursor response flushed hydraulic jump, 2 2—prograding aggrading elements associated relatively stable submerged jump Channel-Lobe Transition Zone (CLTZ), 3 3—major bypass lateral accretion local aggradation interpreted renewal normal CTLZ, 4 4—erosion then abandonment. development active margins allowed by tectonically induced slope segmentation confinement. such context, flow stripping overspill processes occurred. Resulting appear be particularly small thin sandy deposits. They could considered end-member classification based Net-to-Gross content (high) taking into account their thickness/width ratio (intermediate 10:1 100:1 lines).
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ژورنال
عنوان ژورنال: Frontiers in Earth Science
سال: 2021
ISSN: ['2296-6463']
DOI: https://doi.org/10.3389/feart.2021.766946