Results 51 to 60 of about 66,997 (277)

Sedimentology and fluvial styles of the uppermost Cretaceous continental deposits of the Austral-Magallanes Basin, Patagonia, Argentina [PDF]

, 2018
The sedimentary infill of the Austral-Magallanes Basin since the onset of its foreland stage in the Lago Argentino region is dominated by deep-marine and coastal deposits. However, during the Late Cretaceous the basin accumulated a thick and poorly known
Cereceda, Abril, Gómez Peral, Lucia, Moyano Paz, Damián, Odino Barreto, Andrea Lorena, Poire, Daniel Gustavo, Tettamanti, Camila, Tineo, David, Varela, Augusto Nicolás   +7 more
core   +1 more source

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

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

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

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

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 anatomy of exhumed river-channel belts: Bedform to belt‐scale river kinematics of the Ruby Ranch Member, Cretaceous Cedar Mountain Formation, Utah, USA [PDF]

, 2020
Many published interpretations of ancient fluvial systems have relied on observations of extensive outcrops of thick successions. This paper, in contrast, demonstrates that a regional understanding of palaeoriver kinematics, depositional setting and ...
Cardenas, Benjamin T., Goudge, Timothy A., Hughes, Cory M., Levy, Joseph S., Mason, Jasmine, Mohrig, David, Swanson, Travis, Zhao, Feifei   +7 more
core  

Controls on Cyclic Formation of Quaternary Early Diagenetic Dolomite [PDF]

, 2018
The origin of sedimentary dolomite and the factors that control its formation within the geological record remain speculative. In most models, dolomite formation is linked to evaporative conditions, high water temperature, increasing Mg/Ca ratio ...
Bontognali, T. R. R., Immenhauser, A., Kwiecien, Ola, McCormack, J.   +3 more
core   +2 more sources

Analysing the Drivers of Cropland Footprint in Leading Agricultural Nations: Evidence From MMQR Approach

Geological Journal, EarlyView.
ABSTRACT Climate change represents the biggest current challenge for us and for future generations. Its impact on agriculture is undeniable, considering the food security goal. Thus, the cropland footprint has been distinguished as a comprehensive index for assessing the impact of environmental changes in agricultural areas determined by the increased ...
Ibrahim Cutcu, Magdalena Radulescu
wiley   +1 more source

Towards a sequence stratigraphic solution set for autogenic processes and allogenic controls: Upper Cretaceous strata, Book Cliffs, Utah, USA [PDF]

, 2016
Upper Cretaceous strata exposed in the Book Cliffs of east–central Utah are widely used as an archetype for the sequence stratigraphy of marginal-marine and shallow-marine deposits.
Hampson, GJ
core   +1 more source