There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper prese...There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper presents a comprehensive review of Conophyllia, and revises the diagnosis according to new material from the Renacuo area of Gêrzê, Tibet.The revised diagnosis emphasises the following features： solitary coral; abundant radial elements subequal in thickness, lateral faces with granules and synapticulae; parietal, papillar or incompact columella, a few species lacking in columella; developed dissepiments.Individuals of Conophyllia have laminar septa of Triadophyllum type in earlier ontogenetic stages, while their septa in later ontogenetic stages are more fenestrate.The geological and geographical distribution of this genus is discussed, with five species of Conophylliafrom the Renacuo area of Gêrzê, Tibet being described and illustrated, including one new species and two in open nomenclatue.展开更多
This paper demonstrates that Venetian architecture was the result of specifically conceived structural mechanics and construction techniques,which allowed structural design to take full advantage of materials.Venice w...This paper demonstrates that Venetian architecture was the result of specifically conceived structural mechanics and construction techniques,which allowed structural design to take full advantage of materials.Venice witnessed the creation of “structural art” that drastically reduced the incidences of failure caused by extremely soft soils and aggressive environment,which extended the operating horizons of masonry and timber structural materials to the extent that very bold structures were obtained also before the preeminent materials of modern structures.While normal masonry constructions can be governed by Euclidean geometry,Venetian buildings are far more complex and elusive in form.Venice and its architecture can be interpreted and comprehended only in the remit of structural engineering,which played a central role in enabling the construction of the city.The fundamental determinants of Venetian building morphology—the underlying logic of form in architecture,entailed a tectonic form midway between the masonry construction and the skeletal structure.展开更多
基金supported by the Project "Tectonic attributes of the South Qiangtang Mesozoic-Cenozoic basin, based on deformation and metamorphic character" (Project number is: 1212011121271)the Project "1:50,000 Geological Survey of Four Regions in Renacuo Area" (Project number is: 1212011121244)
文摘There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper presents a comprehensive review of Conophyllia, and revises the diagnosis according to new material from the Renacuo area of Gêrzê, Tibet.The revised diagnosis emphasises the following features： solitary coral; abundant radial elements subequal in thickness, lateral faces with granules and synapticulae; parietal, papillar or incompact columella, a few species lacking in columella; developed dissepiments.Individuals of Conophyllia have laminar septa of Triadophyllum type in earlier ontogenetic stages, while their septa in later ontogenetic stages are more fenestrate.The geological and geographical distribution of this genus is discussed, with five species of Conophylliafrom the Renacuo area of Gêrzê, Tibet being described and illustrated, including one new species and two in open nomenclatue.
文摘This paper demonstrates that Venetian architecture was the result of specifically conceived structural mechanics and construction techniques,which allowed structural design to take full advantage of materials.Venice witnessed the creation of “structural art” that drastically reduced the incidences of failure caused by extremely soft soils and aggressive environment,which extended the operating horizons of masonry and timber structural materials to the extent that very bold structures were obtained also before the preeminent materials of modern structures.While normal masonry constructions can be governed by Euclidean geometry,Venetian buildings are far more complex and elusive in form.Venice and its architecture can be interpreted and comprehended only in the remit of structural engineering,which played a central role in enabling the construction of the city.The fundamental determinants of Venetian building morphology—the underlying logic of form in architecture,entailed a tectonic form midway between the masonry construction and the skeletal structure.
