Geode, boudinage, and undulation structures are widely distributed in the siliceous beds of the Upper Cretaceous/Tertiary rocks in Jordan. Their formation was attributed to tectonic forces, syngenetic processes, organ...Geode, boudinage, and undulation structures are widely distributed in the siliceous beds of the Upper Cretaceous/Tertiary rocks in Jordan. Their formation was attributed to tectonic forces, syngenetic processes, organic disintegration processes, subaquatic gliding, compaction and settlement, and meteoritic impacts. In this work, the structural features in the siliceous beds of Jordan are attributed to an interplay of load and directed pressures, and mineralogical transformation processes (opal-A to opal-CT to quartz), governed by pH changes. Tectonic directed pressure was acting in an ESE-WSW direction and is common in the silicified limestone of Upper Cretaceous.展开更多
This Special Issue presents the progress of research and development on geodesy in China during the time period from January 2019 to June 2023.It was submitted,on behalf of the Chinese National Committee for Internati...This Special Issue presents the progress of research and development on geodesy in China during the time period from January 2019 to June 2023.It was submitted,on behalf of the Chinese National Committee for International Association of Geodesy(CNC-IAG),to the IAG General Assembly at the 28th IUGG General Assembly held in Berlin,Germany,July 11—20,2023.It is hoped that this national report would be of help for Chinese scientists in exchanging the results and ideas in the research,development and application of geodesy with scientists all over the world.展开更多
Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combin...Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.展开更多
Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combin...Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.展开更多
Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combin...Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.展开更多
Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combin...Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.展开更多
Recent research indicates that black holes can grow based on the expansion of the universe and not just through accretion and mergers. Two different models independently predicted that finding. One model, describing t...Recent research indicates that black holes can grow based on the expansion of the universe and not just through accretion and mergers. Two different models independently predicted that finding. One model, describing the relevant massive star remnants as “generic objects of dark energy”, rejects the traditional view of black holes while hypothesizing that dark energy causes the cosmologically coupled growth of these objects. The other model, based on the probabilistic spacetime theory, indicates the growth of black holes is based on the same spacetime mechanism underlying all universal expansion, and does so while leaving the traditional black hole conceptualization essentially intact. The fact these two models predicted this observational finding but did so from different perspectives suggests more can be learned by further study of their differences. This paper explores similarities and differences in the two models’ explanations for massive star remnants’ growth, concluding with suggestions for research testing their relative veracity. An exploration of the relative utility and parsimony of the two models is also described.展开更多
文摘Geode, boudinage, and undulation structures are widely distributed in the siliceous beds of the Upper Cretaceous/Tertiary rocks in Jordan. Their formation was attributed to tectonic forces, syngenetic processes, organic disintegration processes, subaquatic gliding, compaction and settlement, and meteoritic impacts. In this work, the structural features in the siliceous beds of Jordan are attributed to an interplay of load and directed pressures, and mineralogical transformation processes (opal-A to opal-CT to quartz), governed by pH changes. Tectonic directed pressure was acting in an ESE-WSW direction and is common in the silicified limestone of Upper Cretaceous.
文摘This Special Issue presents the progress of research and development on geodesy in China during the time period from January 2019 to June 2023.It was submitted,on behalf of the Chinese National Committee for International Association of Geodesy(CNC-IAG),to the IAG General Assembly at the 28th IUGG General Assembly held in Berlin,Germany,July 11—20,2023.It is hoped that this national report would be of help for Chinese scientists in exchanging the results and ideas in the research,development and application of geodesy with scientists all over the world.
文摘Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.
文摘Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.
文摘Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.
文摘Aims and Scope Geodesy and Geodynamics is committed to the publication of high-quality scientific papers in English in the fields of Geodesy and Geodynamics from authors around the world.Its aim is to promote a combination of Geodesy and Geodynamics,encourage the application of Geodesy in the field of Geoscience,and facilitate scientific research activity from the entire world.It mainly publishes novel research achievements in the field of Geodesy,Geodynamics,Science of Disaster and so on.
文摘Recent research indicates that black holes can grow based on the expansion of the universe and not just through accretion and mergers. Two different models independently predicted that finding. One model, describing the relevant massive star remnants as “generic objects of dark energy”, rejects the traditional view of black holes while hypothesizing that dark energy causes the cosmologically coupled growth of these objects. The other model, based on the probabilistic spacetime theory, indicates the growth of black holes is based on the same spacetime mechanism underlying all universal expansion, and does so while leaving the traditional black hole conceptualization essentially intact. The fact these two models predicted this observational finding but did so from different perspectives suggests more can be learned by further study of their differences. This paper explores similarities and differences in the two models’ explanations for massive star remnants’ growth, concluding with suggestions for research testing their relative veracity. An exploration of the relative utility and parsimony of the two models is also described.
