Results 51 to 60 of about 66,733 (286)

Limitations of Boulder Detection in Shallow Water Habitats Using High-Resolution Sidescan Sonar Images

Geosciences, 2019
Stones and boulders in shallow waters (0−10 m water depth) form complex geo-habitats, serving as a hardground for many benthic species, and are important contributors to coastal biodiversity and high benthic production.
Gitta Ann von Rönn, Klaus Schwarzer, Hans-Christian Reimers, Christian Winter   +3 more
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Persistent effects of the Yellow River on the Chinese marginal seas began at least ~880 ka ago

Scientific Reports, 2017
The Yellow River (or Huanghe and also known as China’s Sorrow in ancient times), with the highest sediment load in the world, provides a key link between continental erosion and sediment accumulation in the western Pacific Ocean.
Zhengquan Yao, Xuefa Shi, Shuqing Qiao, Qingsong Liu, Selvaraj Kandasamy, Jianxing Liu, Yanguang Liu, Jihua Liu, Xisheng Fang, Jingjing Gao, Yanguang Dou   +10 more
doaj   +1 more source

A four stage evolution of the White Channel gravel: Implications for stratigraphy and palaeoclimates [PDF]

, 2014
Although the White Channel gravel (WCG) of the Klondike district, Yukon, contains gold placers which have been exploited for over a century, few sedimentological studies have been undertaken.
Chapman, Robert, Lowther, Robert, Peakall, Jeff, Pound, Matthew   +3 more
core  

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source

Calcium Carbonate Production, Coral Cover and Diversity along a Distance Gradient from Stone Town: A Case Study from Zanzibar, Tanzania

Frontiers in Marine Science, 2017
Photosymbiotic scleractinian corals are major bioengineers in tropical coastal waters, where they build structurally complex geological features and provide substrata for a manifold of macro and microhabitats. On a local scale, ecological competition and
Natalia Herrán, Natalia Herrán, Gita R. Narayan, Claire E. Reymond, Hildegard Westphal, Hildegard Westphal   +5 more
doaj   +1 more source

Characterization of wind-blown sediment transport with height in a highly mobile dune (SW Spain) [PDF]

, 2015
The Valdevaqueros dune is located at one of the windiest points of Europe, where the frequent occurrence of strong easterly winds has generated a highly mobile dune.
Gomez-Pina, Gregorio, Muñoz Pérez, Juan José, Navarro-Pons, Marina, Roman-Sierra, Jorge, Ruiz-Cañavate, Antonio   +4 more
core   +5 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Historic Storms Detected in a Changing Environment over Recent Centuries in the Belle Henriette Lagoon

Atmosphere, 2022
This paper explores extreme storms with marine flooding events in historical times. It focuses on the challenges associated with detecting these events with a degree of certainty in a changing environment.
Mohamed Maanan, Pierre Pouzet, Sabine Schmidt, Marc Robin   +3 more
doaj   +1 more source

Distribution of discontinuous mudstone beds within wave-dominated shallow-marine deposits : Star Point Sandstone and Blackhawk Formation, Eastern Utah [PDF]

, 2014
Acknowledgements Funding for this study was provided from the Research Council of Norway through the Petromaks project 193059 and the FORCE Safari Project. The lidar data was collected by Julien Vallet and Samuel Pitiot of Helimap Systems SA.
Buckley, Simon, Eide, Christian Haug, Howell, John   +2 more
core   +2 more sources