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"Long-term Phanerozoic sea level change from solid Earth processes" by Alexander Young, Nicolas Flament et al.

The sedimentary rock record suggests that global sea levels may have fluctuated by hundreds of meters throughout Phanerozoic times. Long-term (10–80 Myr) sea level change can be inferred from paleogeographic reconstructions and stratigraphic methods can be used to estimate sea level change over 1–10 Myr in tectonically quiescent regions assumed to be stable. Plate tectonic reconstructions and mantle flow models make it possible to isolate, quantify and estimate the contribution of different solid Earth mechanisms to sea level change through time, including: the volume of water deeper than mid-oceanic ridges, mantle dynamic topography, marine sedimentation, oceanic large igneous province emplacement, deep-water cycle, volume above oceanic trenches and changes in continental area. Although these processes are intrinsically linked, their impact on sea level change is rarely studied in combination, and time-dependent models of long-term eustasy from tectonic and geodynamic processes ar ....

Dynamic Topography , Mantle Convection , Solid Earth , Supercontinent Cycle ,

"Modelling the role of dynamic topography and eustasy in the evolution " by Carmen Braz, Sabin Zahirovic et al.

Widespread flooding of the Australian continent during the Early Cretaceous, referred to as the Eromanga Sea, deposited extensive shallow marine sediments throughout the Great Artesian Basin (GAB). This event had been considered ‘out of sync’ with eustatic sea level and was instead solely attributed to dynamic subsidence associated with Australia's passage over eastern Gondwanan subducted material. However, mantle convection models previously used to explain this event have since been shown to overestimate dynamic topography amplitude by a factor of two compared with residual topography estimates. Previous models were also based on a Cretaceous eustatic sea level peak at ca. 90 Ma in conventional eustatic sea level curves; however, more recent estimates of global sea level from ocean basin volume (OBV) suggest this peak may have occurred earlier at ca. 120 Ma. Our work links time-dependent erosion and deposition with dynamic topography and eustasy to test their contribution to ....

Great Artesian Basin , Eromanga Sea , Early Cretaceous , Dynamic Topography , Great Artesian Basin , Sea Level , Surface Processes ,

"The influence of mantle flow on intracontinental basins: Three example" by Alexander Young, Nicolas Flament et al.

Abstract
During the Paleozoic, sedimentary basins developed within Gondwana without evolving to diverging plate boundaries. Such intracontinental basins present long subsidence histories with multiple phases of accelerated subsidence that are not always easily explained by far-field tectonic forces, and may be driven by processes other than rifting and thermal subsidence. Here we investigate the subsidence of Paleozoic Australian intracontinental basins by comparing one-dimensional backstripped tectonic subsidence histories from the western Australian Canning and Southern Carnarvon Basins and the central Australian Cooper Basin to forward subsidence models for pure shear lithospheric thinning. We make the hypothesis that differences between observed and model subsidence may be explained by mantle-flow driven topography, in addition to tectonic forces. To test this hypothesis, we compute dynamic topography from the first geodynamic models of mantle flow spanning the entire Phan ....

Paleozoic Australian , Australian Canning , Southern Carnarvon Basins , Australian Cooper Basin , Phanerozoic Eon , Cooper Basin , Southern Carnarvon , Late Jurassic Cretaceous , Asin Subsidence , Dynamic Topography , Antle Flow , ஆஸ்திரேலிய பதப்படுத்தல் , தெற்கு கார்னார்வோன் பேசின்கள் , ஆஸ்திரேலிய கூப்பர் பேசின் , கூப்பர் பேசின் , தெற்கு கார்னார்வோன் , தாமதமாக ஜுராசிக் கிரேதாஸோஸ் ,