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Landslide hazard assessment of an urban agglomeration in central Guizhou Province based on an information value method and SVM, bagging, DNN algorithm.
Sci Rep
January 2025
Guizhou Provincial Institute of Mountain Resources, No.1 Shaanxi Road, Yunyan District, Guiyang City, Guizhou Province, China.
The urban agglomeration in central Guizhou is located in a crustal deformation area caused by tectonic uplift between the Mesozoic orogenic belt of East Asia and the Alpine-Tethys Cenozoic orogenic belt, with high mountains, steep slopes, fractured rock masses and a fragile ecological environment; this area is the most affected by landslides in Guizhou Province, China. In the past decade, there were a total of 613 medium and large landslide disasters, resulting in 137 deaths and a direct economic loss of 1.032 billion yuan.
View Article and Find Full Text PDFHigh-resolution investigations of fault architecture in space and time.
Sci Rep
January 2025
Dipartimento di Scienze Biologiche, Geologiche ed Ambientali, Università di Bologna, Bologna, Italy.
Heterogeneous fault architecture affects crustal seismotectonics and fluid migration. When studying it, we commonly rely on static conceptual models that generally overlook the absolute time dimension of fault (re)activation. Heterogenous faults, however, represent the end-result of protracted, cumulative and intricate deformation histories.
View Article and Find Full Text PDFPetrogenesis and geodynamic implication of the newly recorded Cryogenian Suwaj adakitic magmatism at the eastern Arabian-Shield.
Sci Rep
January 2025
Saudi Geological Survey, P.O Box: 54141, Jeddah, 21514, Kingdom of Saudi Arabia.
Recent reconnaissance geochemical investigations have unveiled Cryogenian magmatism linked to the compressional accretionary phase, contributing to the growth of the Afif Terrane in the eastern Arabian Shield. The Cryogenian Suwaj intrusive suite, within the Afif Terrane, displays a compositional range from gabbro-diorite to tonalite-granodiorite. The uniform compositional variation is primarily due to magmatic differentiation within parental magma across multiple pulses.
View Article and Find Full Text PDFGrowth and mechanical correlations of calcified cartilage in Batoidea: A histomorphological study using the Raja asterias model.
J Fish Biol
January 2025
Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy.
Article Synopsis
- This study examines how the growth and calcification of the appendicular skeleton in the Raja asterias affects its movement in water, highlighting the link between bone structure and fin mechanics.
- It identifies two growth patterns—crustal in larger skeletal parts and catenated in fin radials—showing how differences in development can influence fin flexibility and locomotion.
- The results suggest that unique calcification patterns, especially in the pelvic fins, evolve to meet the mechanical needs of swimming, emphasizing the adaptability of Batoidea fins through their joint structures and specialized designs.
Article Synopsis
- Orogenic growth leads to crustal thickening, which increases elevation and enhances precipitation, thus impacting erosion and deformation processes.
- A numerical model shows that rock uplift, precipitation, and erosion rates in intermediate erodibility orogens are highly correlated, particularly during the formation of orogenic plateaus.
- The study reveals how the development of new faults affects the cyclical relationships among these processes, offering insights into erosion controls in active mountain ranges like the Himalayas and potentially resolving conflicting interpretations related to fault maturity.
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