Palaeo-drainage, incised valley fills and transgressive systems tract sedimentation of the northern KwaZulu-Natal continental shelf, South Africa, SW Indian Ocean

Delta development and channel incision during marine isotope stages 3 and 2 in the western South Yellow Sea

“…The basal fills were truncated by a transgressive ravinement surface (seismic surface T2) traceable on a regional scale, which was then overlain by transgressive shelf deposits. This model reflects general sediment facies distribution of incised-channel fills in the western SYS, and on the whole conform well with the sedimentological models of contemporary incised channel/valley fills proposed for other shelves, such as USA shelves, including the Texas Continental shelf (Thomas and Anderson, 1994), the Virginia inner shelf (Foyle and Oertel, 1997) and the New Jersey continental shelf (Nordfjord et al, 2006), the northern KwaZulu-Natal continental shelf in the South Africa (Green, 2009), and the Bay of Biscay (south-west of France) (Lericolais et al, 2001), though our model makes no further identification of subfacies within the estuarine facies due to limited seismic resolution. As with the other model, the filling pattern of the incised channels in the western SYS represents a sedimentary evolution in response to sea-level changes during the late MIS 3 through the Holocene.…”

Palaeogeomorphology and its control on the development of sequence stratigraphy and depositional systems of the Early Silurian in the Tarim Basin

“…The Tarim Basin experienced a multicycle history from subsidence and filling to uplifting and erosion, the depositional filling of each cycle was controlled by the palaeogeomorphology and paleo-uplift evolution (Lin et al, 2004b). In general, a typical evolutionary cycle of the uplift can be divided into the following three stages (Lin et al, 2004a;2009): (1) The initial or underwater uplifting stage before the uplift rose above the water level, the overlying deposits became thinner toward the top of the uplift and formed a shoaling upward depositional sequence. Then the uplift was a kind of "depositional uplift".…”

“…Many people have noticed the relationship between paleouplift geomorphology and sequence-depositional system development and distribution, especially the tectonic evolution effect on the geomorphic evolution, palaeodrainage, incised valley fi lls and transgressive systems tract sedimentation (Plint and Wadsworth, 2003;Lin et al, 2004a;2009;Coswami et al, 2009;Green, 2009). …”

A sequence stratigraphic framework for a narrow, current-swept continental shelf: The Durban Bight, central KwaZulu-Natal, South Africa

“…We recognise these as high frequency tectonically induced subaerial unconformities. Zaitlin et al (1994) and Green (2009) consider these compound incised valleys to be the result of under-filling of the former incision and the creation of a depression in which successive drainage then followed. Additionally, the energy required to re-scour channels within the unconsolidated silty sands which dominate Upper Cretaceous successions (McMillan, 2003) would be minimal.…”