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Gerhard Eggert and Andrea Fischer
Many heritage objects consist of glass in contact with metals. By ion exchange with absorbed water, alkaline aqueous films are formed on the glass surface. They contain sodium and/or potassium, hydroxide, and carbonate (uptake of carbon dioxide) ions. Th...
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Lavanya Muthugoundenpalayam Rajendran, Johnpaul Vincent, Balasundaram Natarajan and Venkatesan Govindan
Concrete must be a hydrophilic compound that is easily fabricated by nature. At the nanoscale, mechanical and chemical reactions alter the quality of cement-based substances. Continuous sprinkling of nano-silica solution synthesised with minimal surface ...
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Inna Morgunova, Petr Semenov, Anna Kursheva, Ivan Litvinenko, Sergey Malyshev, Sergey Bukin, Oleg Khlystov, Olga Pavlova, Tamara Zemskaya and Alexey A. Krylov
This paper performs a detailed study of a wide set of organic-geochemical proxies in 15 sediment cores collected from the main basins of Lake Baikal (the northern, the central and the southern) where processes of focused fluid discharge were detected. A ...
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Stefano Conti, Claudio Argentino, Chiara Fioroni, Aura Cecilia Salocchi and Daniela Fontana
The natural emission of methane-rich fluids from the seafloor, known as cold seepage, is a widespread process at modern continental margins. The studies on present-day cold seepages provide high-resolution datasets regarding the fluid plumbing system, bi...
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Zlatko Bri?evac, Davor Pollak, Ana Maricic and Andreja Vlahek
Modulus of elasticity for grain-supported carbonate rocks is successfully estimated by using simple estimation models. The methodology and models described in this paper can help engineers in the early design stages when they need a quick and easy estima...
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Rashida Salimova, Peyman Pourafshary and Lei Wang
Low salinity water (LSW) injection is a promising Enhanced Oil Recovery (EOR) technique that has the potential to improve oil recovery and has been studied by many researchers. LSW flooding in carbonates has been widely evaluated by coreflooding tests in...
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Zilin Wei, Tianfu Xu, Songhua Shang, Hailong Tian, Yuqing Cao, Jiamei Wang, Zhenya Shi and Xiao Liu
Authigenic carbonates are widely distributed in marine sediments, microbes, and anaerobic oxidation of methane (AOM) play a key role in their formation. The authigenic carbonates in marine sediments have been affected by weathering and diagenesis for a l...
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Mariam Shakeel, Peyman Pourafshary and Muhammad Rehan Hashmet
The fast depletion of oil reserves has steered the petroleum industry towards developing novel and cost-effective enhanced oil recovery (EOR) techniques in order to get the most out of reservoirs. Engineered water?polymer flooding (EWPF) is an emerging h...
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Isabel Méndez-Bedia,Gloria Gallastegui,Pedro Busquets,Silvia N. Césari,Carlos O. Limarino,Eva Prats,Raúl Cardó,Ferrán Colombo
Pág. 275 - 294
In the Argentinian Andes (Frontal Cordillera) the upper part of the late Carboniferous-early Permian San Ignacio Formation is made up of lacustrine-palustrine microbial carbonates and interbedded volcanic deposits. In this lacustrine-palustrine environme...
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Claudio Argentino, Stefano Conti, Chiara Fioroni and Daniela Fontana
The occurrence of seep-carbonates associated with shallow gas hydrates is increasingly documented in modern continental margins but in fossil sediments the recognition of gas hydrates is still challenging for the lack of unequivocal proxies. Here, we com...
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Olga Khokhlova and Tatyana Myakshina
The work is aimed at the analysis of carbonate dynamics in soils under different land use. The studied area is located in the forest steppe - of the Central Russian Upland. Soils were sampled at four sites: a broadleaf forest, an adjacent 50-year continu...
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Olga Khokhlova and Tatyana Myakshina
The work is aimed at the analysis of carbonate dynamics in soils under different land use. The studied area is located in the forest steppe - of the Central Russian Upland. Soils were sampled at four sites: a broadleaf forest, an adjacent 50-year continu...
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Yann Le Gallo and José Carlos De Dios
Investigation into geological storage of CO2 is underway at Hontomín (Spain). The storage reservoir is a deep saline aquifer formed by naturally fractured carbonates with low matrix permeability. Understanding the processes that are involved in CO...
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David Carlos Fernández-Remolar, Mónica Sánchez-Román and Ricardo Amils
The mineralogical characterization of Mars by different exploration missions, provides a new image of the earliest conditions that prevailed on the planet surface. The detection of extensive deposits of phyllosillicates has been considered to be as a res...
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Richard M. Wormald, Jeremy Hopwood, Paul N. Humphreys, William Mayes, Helena I. Gomes and Simon P. Rout
Priorities for the exploration of Mars involve the identification and observation of biosignatures that indicate the existence of life on the planet. The atmosphere and composition of the sediments on Mars suggest suitability for anaerobic chemolithotrop...
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Thomas Bissig,Daisy Donoso,Nelson C. Guerra,Gregory M. Dipple
Pág. 291 - 304
Carbonate minerals are common gangue minerals in the low sulfidation epithermal Au-Ag District of El Peñón, II Región, Chile. They can be subdivided into two principal groups on the basis of the paragenetic relationships. Paragenetically early carbonates...
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George Kontakiotis, Leonidas Moforis, Vasileios Karakitsios and Assimina Antonarakou
Sedimentological, micropalaeontological, and marine geological results from the Early Jurassic to Eocene carbonate formations of the Ionian zone, from six localities of Epirus, provide new insights into the basin palaeogeographic evolution and better cor...
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Jabbar K Kassim
Pág. 9 - 19
Attempts have been made to evaluate four methods of quantitative determination of soil carbonates. Calcium carbonates equivalent were determined by the acid neutralization, calcimeter and acetic acid methods. Also, it obtains by the fourth methods when t...
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Yiqing Wang, Yaohui Xu, Junping Huang, Jianglong Shi, Heng Zhao, Qingtao Wang and Qiang Meng
The hydrocarbon source rocks of the marine carbonates of the Ordovician Majiagou Formation in the Ordos Basin are generally in the high-overmature stage and are, therefore, not suitable for hydrocarbon thermal simulation experiments. Their hydrocarbon ge...
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Shazia Qamar, Mumtaz Muhammad Shah, Hammad Tariq Janjuhah, George Kontakiotis, Amir Shahzad and Evangelia Besiou
This study presents a thorough analysis of the sedimentology, diagenesis, and sequence stratigraphy of the Middle Jurassic Samana Suk Formation in the Hazara Basin of northern Pakistan. Focusing on two sections, namely Mera Rehmat and Por Miana, the rese...
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