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Betzler, Christian; Eberli, Gregor P.; Zarikian, C.A. Alvarez; Alonso-García, Montserrat; Bejugam, Nagender Nath; Bialik, Or M.; Blättler, Clara L.; Guo, Junhua; Haffen, Sébastien; Horozal, Senay; Inoue, Mayuri; Jovane, Luigi; Kroon, Dick; Lanci, L.; Laya, Juan Carlos; Mee, Anna Ling Hui; Lüdmann, Thomas; Nakakuni, Masatoshi; Niino, Keiji; Petruny, Loren M.; Pratiwi, Santi D.; Reijmer, John J.G.; Reolid, Jesús; Slagle, Angela L.; Sloss, Craig R.; Su, Xiang; Swart, Peter K.; Wright, James D.; Yao, Zhengquan; Young, Jeremy R.

doi:10.14379/iodp.pr.359.2016

Cited by 10 publications

(11 citation statements)

References 34 publications

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“…The Middle Miocene was a climatic optimum interval [63]. In the SCS, this period was characterized by large carbonate platform developments, from a seismic perspective [22], and this efflorescence has also been reported in the Indian Ocean [38]. The high DAR during the Quaternary is correlated with other basins around the SCS [22], further validating our results.…”

Section: Geochronology and Accumulation Rate Of Neogene Biogenic Reefssupporting

confidence: 88%

“…Furthermore, global cooling [63] followed biogenic reefs development in both the SCS (Fig. 5) and the Indian Ocean [37,38], as same as that in the Quaternary. Although a causal relationship between these factors cannot be determined in this study, this correlation Fig.…”

Section: Deriving Forces and Global Significancementioning

confidence: 64%

“…However, this problem also exists in the Indian Ocean. For instance, at the IODP Leg 359 sites [37,38], reliable paleomagnetic age constraints were only obtained for ca. 2 Ma interval (C2Ar-C3n.3n Chron/Subchrons) at Site U1467.…”

Section: Introductionmentioning

confidence: 99%

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Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea

Long

Jian

et al. 2018

Science Bulletin

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Section: Geochronology and Accumulation Rate Of Neogene Biogenic Reefssupporting

confidence: 88%

Section: Deriving Forces and Global Significancementioning

confidence: 64%

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Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea

Long

Jian

et al. 2018

Science Bulletin

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“…1988; Everts and Reijmer, 1995;Leeder, 1999;Bosence, 2002;Bosence andWilson, 2002a, 2002b;Pomar et al, 2002;Eberli et al, 2004;Maurer et al, 2010;Lanfranchi et al, 2011;Betzler et al, 2015) and siliciclastic systems (e.g., Schlee et al, 1979;Steckler et al, 1999;Adams and Schlager, 2000;Tesson et al, 2000;Howell and Flint, 2002a, 2002cCattaneo et al, 2003Cattaneo et al, , 2007Holgate et al, 2014Holgate et al, , 2015Pellegrini et al, 2018). Clinothems may be also formed by very shallow-water gypsum platform accretion (Tucker, 1991;Patruno et al, 2018, in press).…”

Section: Palaeoenvironmental Significancementioning

confidence: 99%

Clinoforms and clinoform systems: Review and dynamic classification scheme for shorelines, subaqueous deltas, shelf edges and continental margins

Patruno

Helland‐Hansen

2018

Earth-Science Reviews

185

166

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A B S T R A C TClinoforms are inclined and normally basinward-dipping horizons developed over a range of spatial and temporal scales in both siliciclastic and carbonatic systems. The study of clinoform successions underpins sequence stratigraphy and all efforts to reconstruct the relative partitioning of reservoir, seal and source rocks along shoreline to basin-floor profiles.Here, we review clinoform research and propose a more systematic description and classification of clinoforms. This is a crucial step to improve predictions of facies and lithology distribution within shoreline to continental shelf and abyssal plain successions, together with the genesis, drivers and dynamics of their constituent sedimentary units.Four basic clinoform types are here distinguished in delta/shorelines, lacustrines and marine environments, on the basis of their overall spatial and temporal scale, morphology, outbuilding dynamic and geodynamic and depositional setting: (1, 2) delta-scale clinoforms, which in turns are sub-divided into shoreline and delta-scale subaqueous clinoforms; (3) shelf-edge clinoforms; and (4) continental-margin clinoforms. Delta-scale clinoform sets are tens of metres high and typically represent 1-10 3 kyr, with progradation rates ranging from 1,000-100,000 m/kyr for shorelines and "subaerial deltas" to 100-20,000 m/kyr for subaqueous deltas; shelfedge clinoform sets are hundreds of metres high and are nucleated and accreted in 0.1-20 Myr (usual progradation rates of 1-100 m/kyr) by successive cross-shelf transits of delta-scale clinoforms; continental-margin clinoform sets are thousands of metres high, hallmark key geodynamic/crustal boundaries (e.g., continent/ocean transition) and slowly prograde basinwards in ca. 5-100 Myr, with typical rates of 0.1-10 m/kyr. As a consequence of the very different progradation rates and of the difficulty of large-scale clinothems to backstep during transgressions, shorelines are the most dynamic clinoforms with regards to position, continental margins the least, and shelf-edges are intermediate. Shortly after a transgression, therefore, the four clinoform types may prograde synchronously along shoreline-to-abyssal plain transects, forming "compound clinoform" systems. During the subsequent regressive cycle, however, due to the dissimilarity in progradation rates, different clinoform types will normally merge progressively with each other, giving rise to "hybrid clinoforms" (e.g., shelf-edge deltas), and fewer depositional breaks-in-slope are distinguished along a single shoreline-toabyssal plain transect. Overall, all clinoform systems are the result of the dynamic evolution of compound and hybrid clinoforms along a temporal and spatial continuum, regulated by the cyclical backstepping of the smallerscale system within natural progradational-retrogradational cycles of larger-scale clinothem outbuilding.All clinothem types may show either an accretionary/active or draping/passive style, depending on the proximity to the sediment source. Draping clinothems are nearly...

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“…We named the new sediment drifts delta drifts because they have much in common with river or tidal deltas. In 2015, during IODP Expedition 359 two platform-to-basin transects were drilled north and south of Goidhoo Atoll as well as in the Inner Sea (Betzler et al, 2016a;2017a, b). The cores and well logs through the delta drift deposits provide the sedimentological and stratigraphic data for the comprehensive analysis of the new drift type that is presented here (Fig.…”

Section: Introductionmentioning

confidence: 99%

Carbonate delta drift: A new sediment drift type

et al. 2018

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Based on high-resolution reflection seismic and core data from IODP Expedition 359 we present a new channel-related drift type attached to a carbonate platform slope, which we termed delta drift. Like a river delta, it is comprised of several stacked lobes and connected to 3 3 a point source. The delta drifts were deposited at the exit of two gateways that connect the Inner Sea of the Maldives carbonate platform with the open ocean. The channels served as conduits focusing and accelerating the water flow; Entrained material was deposited at their mouth where the flows relaxed. The lobe-shaped calcareous sediment drifts must have formed under persistent water through flow. Sediment supply was relatively high and continuous, resulting in an average sedimentation rate of 17 cm ka-1. The two delta drifts occupy 342 and 384 km 2 , respectively; with a depositional relief of approximately 500 m. They have a sigmoidal clinoform reflection pattern with a particular convex upward bending of the foresets. In the Maldives the drift onset marks the transition from a sea-level controlled to a progressively current dominated depositional regime. This major event occurred in the Serravallian about 13 Ma ago, leading to the partial drowning of the carbonate platform and the creation of shallow seaways. The initial bank-enclosed topography resembles an "empty bucket" geometry which is rapidly filled by the drift sediments that aggrade and prograde into the basin. Thereby the depositional environment of the delta drifts changes from deep water (>500) to shallow-water conditions at their topsets, indicated by the overall coarsening upward trend in grain size and the presence of shallow water large benthic foraminifers at their top.

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Cited by 10 publications

References 34 publications

Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea

Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea

Clinoforms and clinoform systems: Review and dynamic classification scheme for shorelines, subaqueous deltas, shelf edges and continental margins

Carbonate delta drift: A new sediment drift type

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