CET4 and CET6 (combined asCETsin thispaper) have played and are still playing undeniable rolesin motivating English teaching and learning as well as providing a unified standard according to which most universities an...CET4 and CET6 (combined asCETsin thispaper) have played and are still playing undeniable rolesin motivating English teaching and learning as well as providing a unified standard according to which most universities and colleges can compare with each other. However, in the recent years, a voice blaring their disadvantages has become louder and louder. This paper joins in the voice and expose their negative backwash effects on not only language education in colleges and universities but also on the activities of other institutions and organizations which are directly or indirectly involved in language training. This is what it means by"Language Education in a Broader Sense"in the title of this paper. Some improvements have been suggested in the end.展开更多
This study integrates gravity and aeromagnetic datasets to delineate basement depth and characterise the subsurface structural framework of the Gerad Graben in the western Sirt Basin,Libya.Techniques including high-pa...This study integrates gravity and aeromagnetic datasets to delineate basement depth and characterise the subsurface structural framework of the Gerad Graben in the western Sirt Basin,Libya.Techniques including high-pass filtering,Centre for Exploration Targeting(CET) edge detection,Source Parameter Imaging(SPI),and Euler Deconvolution(ED) were applied to residual gravity and residual reduced-topole(RTP) magnetic data to enhance fault mapping and basement morphology.Tests of various cutoff wavelengths show that 10 km for gravity and 15 km for magnetic data provide optimal resolution of shallow structures while preserving deeper trends.Forward 2D GM-SYS modelling and Werner Deconvolution further constrained the geometry and depth of intrusive bodies and fault systems.Results reveal a structurally complex graben with NE-SW,NW-SE,ENE-WSW,and N-S trending faults,indicating multiphase tectonic deformation.Graben-bounding faults show displacement values of600-4290 m,and basement depths in the central depocenter reach 4275-4300 m,validated by well NTF-50.Magnetic anomalies indicate intrusive igneous bodies,including NW-SE-trending sills and dikes,associated with the Tibesti and Al Haruj volcanic provinces.These intrusions likely caused localised heating,uplift,and fault reactivation.The integrated interpretation supports a tectonomagmatic evolution involving successive rifting phases from the Paleozoic to Cenozoic,influenced by inherited Precambrian structures.These features,coupled with substantial sediment infill and magmatic activity,enhance the hydrocarbon potential of the Gerad Graben,suggesting the presence of structural and stratigraphic traps within the broader of Sirt Basin petroleum system.展开更多
文摘CET4 and CET6 (combined asCETsin thispaper) have played and are still playing undeniable rolesin motivating English teaching and learning as well as providing a unified standard according to which most universities and colleges can compare with each other. However, in the recent years, a voice blaring their disadvantages has become louder and louder. This paper joins in the voice and expose their negative backwash effects on not only language education in colleges and universities but also on the activities of other institutions and organizations which are directly or indirectly involved in language training. This is what it means by"Language Education in a Broader Sense"in the title of this paper. Some improvements have been suggested in the end.
文摘This study integrates gravity and aeromagnetic datasets to delineate basement depth and characterise the subsurface structural framework of the Gerad Graben in the western Sirt Basin,Libya.Techniques including high-pass filtering,Centre for Exploration Targeting(CET) edge detection,Source Parameter Imaging(SPI),and Euler Deconvolution(ED) were applied to residual gravity and residual reduced-topole(RTP) magnetic data to enhance fault mapping and basement morphology.Tests of various cutoff wavelengths show that 10 km for gravity and 15 km for magnetic data provide optimal resolution of shallow structures while preserving deeper trends.Forward 2D GM-SYS modelling and Werner Deconvolution further constrained the geometry and depth of intrusive bodies and fault systems.Results reveal a structurally complex graben with NE-SW,NW-SE,ENE-WSW,and N-S trending faults,indicating multiphase tectonic deformation.Graben-bounding faults show displacement values of600-4290 m,and basement depths in the central depocenter reach 4275-4300 m,validated by well NTF-50.Magnetic anomalies indicate intrusive igneous bodies,including NW-SE-trending sills and dikes,associated with the Tibesti and Al Haruj volcanic provinces.These intrusions likely caused localised heating,uplift,and fault reactivation.The integrated interpretation supports a tectonomagmatic evolution involving successive rifting phases from the Paleozoic to Cenozoic,influenced by inherited Precambrian structures.These features,coupled with substantial sediment infill and magmatic activity,enhance the hydrocarbon potential of the Gerad Graben,suggesting the presence of structural and stratigraphic traps within the broader of Sirt Basin petroleum system.
