Based on two-dimensional/three-dimensional seismic and logging data,combined with the analysis of low-temperature thermochronology data,the unconformity surface characteristics and the patterns and dynamic mechanisms ...Based on two-dimensional/three-dimensional seismic and logging data,combined with the analysis of low-temperature thermochronology data,the unconformity surface characteristics and the patterns and dynamic mechanisms of inverted structures in the Doseo Basin in the Central and West African rift systems are systematically analyzed.Seismic profiles reveal two key inversion unconformable surfaces in the basin,i.e.the T_(5)interface within the Upper Cretaceous and the T_(4)interface at the top of the Cretaceous,which control the development of inverted structures in the basin.Four types of inverted structures,i.e.fault-associated,thrust,fold,and back-shaped negative flower,are identified.Spatially,they form six inverted structural belts trending in NE-NEE direction.The thermal history simulation of apatite fission track reveals two rapid cooling events in the late Late Cretaceous(85-80 Ma,cooling by 15℃)and the Eocene-Oligocene(30-40 Ma,cooling by 35℃),corresponding respectively to the formation periods of the T_(5)and T_(4)interface.The dynamics analysis of structural inversion indicates that the structural inversion in the Late Cretaceous was controlled by the subduction and long-range compression within the Tethys Ocean in the north of African Plate,while the structural inversion in the Eocene-Oligocene was drived by the stress transmission from the African-Eurasian collision.The two events were all controlled by the continuous tectonic regulation of the intracratonic basin by the evolution of the Tethys tectonic domain.The two periods of structural inversion enhanced the efficiency of oil and gas migration by controlling the types of traps(anticline and fault-related traps)and fault activation,precisely matching the hydrocarbon generation peaks of the Lower Cretaceous source rocks in the Late Cretaceous and Eocene,thereby controlling the formation of large-scale oil and gas reservoirs in the Doseo Basin.This geological insight provides a critical basis for the theoretical research on the evolution and hydrocarbon accumulation of inverted structures in discrete strike-slip rift systems.展开更多
Functional dyspepsia(FD)remains a clinical challenge due to its heterogeneous symptoms,absence of identifiable structural abnormalities,and limited treatment efficacy[1]As FD coexists with psychological disturbances,i...Functional dyspepsia(FD)remains a clinical challenge due to its heterogeneous symptoms,absence of identifiable structural abnormalities,and limited treatment efficacy[1]As FD coexists with psychological disturbances,it is increasingly recognized as a disorder of the braingut axis,characterized by bidirectional dysregulation between the central and enteric nervous systems[2].展开更多
Retinal nerve fiber layer （RNFL）, which originates from various locations of the retina and converge toform the optic nerve, makes up the innermost neural layer of the retina~ RNFL defect, including localized and di...Retinal nerve fiber layer （RNFL）, which originates from various locations of the retina and converge toform the optic nerve, makes up the innermost neural layer of the retina~ RNFL defect, including localized and diffuse RNFL defect, is believed to be a characteristic feature of glaucoma and an important clue for the detection of early glaucoma, which may precede detectable optic disc changes and visual field loss. However, RNFL defect does not always equate to a diagnosis of glaucoma, and it can also be induced by vascular accidents or some other events in RNFL1, suc as hypertension, non-arteritic anterior ischemic optic neuropathy, multiple sclerosis, and so on.展开更多
基金Supported by the National Natural Science Foundation of China(92255302)Science and Technology Project of PetroChina Company Limited(2023ZZ07).
文摘Based on two-dimensional/three-dimensional seismic and logging data,combined with the analysis of low-temperature thermochronology data,the unconformity surface characteristics and the patterns and dynamic mechanisms of inverted structures in the Doseo Basin in the Central and West African rift systems are systematically analyzed.Seismic profiles reveal two key inversion unconformable surfaces in the basin,i.e.the T_(5)interface within the Upper Cretaceous and the T_(4)interface at the top of the Cretaceous,which control the development of inverted structures in the basin.Four types of inverted structures,i.e.fault-associated,thrust,fold,and back-shaped negative flower,are identified.Spatially,they form six inverted structural belts trending in NE-NEE direction.The thermal history simulation of apatite fission track reveals two rapid cooling events in the late Late Cretaceous(85-80 Ma,cooling by 15℃)and the Eocene-Oligocene(30-40 Ma,cooling by 35℃),corresponding respectively to the formation periods of the T_(5)and T_(4)interface.The dynamics analysis of structural inversion indicates that the structural inversion in the Late Cretaceous was controlled by the subduction and long-range compression within the Tethys Ocean in the north of African Plate,while the structural inversion in the Eocene-Oligocene was drived by the stress transmission from the African-Eurasian collision.The two events were all controlled by the continuous tectonic regulation of the intracratonic basin by the evolution of the Tethys tectonic domain.The two periods of structural inversion enhanced the efficiency of oil and gas migration by controlling the types of traps(anticline and fault-related traps)and fault activation,precisely matching the hydrocarbon generation peaks of the Lower Cretaceous source rocks in the Late Cretaceous and Eocene,thereby controlling the formation of large-scale oil and gas reservoirs in the Doseo Basin.This geological insight provides a critical basis for the theoretical research on the evolution and hydrocarbon accumulation of inverted structures in discrete strike-slip rift systems.
基金supported by the Major Program of National Natural Science Foundation of China(No.82293651)the Strategic Research and Consulting Project of Chinese Academy of Engineering(No.2024-XZ-68).
文摘Functional dyspepsia(FD)remains a clinical challenge due to its heterogeneous symptoms,absence of identifiable structural abnormalities,and limited treatment efficacy[1]As FD coexists with psychological disturbances,it is increasingly recognized as a disorder of the braingut axis,characterized by bidirectional dysregulation between the central and enteric nervous systems[2].
文摘Retinal nerve fiber layer （RNFL）, which originates from various locations of the retina and converge toform the optic nerve, makes up the innermost neural layer of the retina~ RNFL defect, including localized and diffuse RNFL defect, is believed to be a characteristic feature of glaucoma and an important clue for the detection of early glaucoma, which may precede detectable optic disc changes and visual field loss. However, RNFL defect does not always equate to a diagnosis of glaucoma, and it can also be induced by vascular accidents or some other events in RNFL1, suc as hypertension, non-arteritic anterior ischemic optic neuropathy, multiple sclerosis, and so on.
