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Geophysical evidence of a large occurrence of mud volcanoes associated with gas plumbing system in the Ross Sea(Antarctica)

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Geoscience Frontiers 2024年第1期15卷 304-324页

作者： martina busetti Riccardo Geletti Dario Civile Chiara Sauli Giuseppe Brancatelli Edy Forlin Daniela Accettella Lorenza Barro Savonuzzi Laura De Santis Aldo Vesnaver Andrea Cova National Institute of Oceanography and Applied Geophysics–OGS Borgo Grotta Gigante 42/c34010 SgonicoTriesteItaly

Seafloor and buried reliefs occur along continental margin of the Ross Sea(Antarctica).These features are several kilometres wide and tens of metres high,exhibiting cone or flat-top dome *** studies have proposed a volcanic or glacial origin for these formations,but these hypotheses do not account for all the available *** this study,we use morpho-bathymetric data,intermediate resolution multichannel seismic and high resolution chirp profiles,as well as magnetic lines to investigate these clusters of *** employing targeted processing techniques to enhance the geophysical characterization of the seafloor and buried reliefs,and to understand the underlying geological features,we propose that the reliefs are mud *** of these formations appear to be associated with a plumbing system,as indicated by acoustic anomalies linked to sediment containing *** formations are likely fed by clayey source rocks of Miocene ***,other reliefs might be the result of mud mobilisation caused by gravity instability and fluid overpressure.

关键词： Ross Sea Antarctica Mud volcanoes Gas plumbing system Gas hydrate Bottom Simulating Reflector

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Organic chloramines in chlorine-based disinfected water systems： A critical review

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Journal of Environmental Sciences 2017年第8期29卷 2-18页

作者： Zuo Tong How Ina Kristiana Francesco busetti Kathryn L.Linge Cynthia A.Joll Curtin Water Quality Research Centre Department of Chemistry Curtin University Perth Western Australia 6102 Australia

This paper is a critical review of current knowledge of organic chloramines in water systems,including their formation, stability, toxicity, analytical methods for detection, and their impact on drinking water treatment and quality. The term organic chloramines may refer to any halogenated organic compounds measured as part of combined chlorine（the difference between the measured free and total chlorine concentrations）, and may include N-chloramines,N-chloramino acids, N-chloraldimines and N-chloramides. Organic chloramines can form when dissolved organic nitrogen or dissolved organic carbon react with either free chlorine or inorganic chloramines. They are potentially harmful to humans and may exist as an intermediate for other disinfection by-products. However, little information is available on the formation or occurrence of organic chloramines in water due to a number of challenges. One of the biggest challenges for the identification and quantification of organic chloramines in water systems is the lack of appropriate analytical methods. In addition, many of the organic chloramines that form during disinfection are unstable, which results in difficulties in sampling and detection. To date research has focussed on the study of organic ***, given that breakpoint chlorination is commonly undertaken in water treatment systems, the formation of organic dichloramines should also be considered. Organic chloramines can be formed from many different precursors and pathways. Therefore, studying the occurrence of their precursors in water systems would enable better prediction and management of their formation.

关键词： Amino acids Disinfection by-products Organic chloramines N-chloramine Drinking water quality Organic bromamines Organic iodamines

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Fluoride-induced Early Teeth Wearing in Argentinian Cattle

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Biomedical and Environmental Sciences 1994年第3期7卷 205-215页

作者： TOMAS A. LOPEZ MARGARITA R. busetti MARCELO C. FORT AND DANIEL O. BEDOTTI (Laboratorio de Toxicologia Veterinaria-Estacion Experimental Agropecuaria Balcarce (INTA), Casilla de Correo 276-(7620) Balcarce-Buenos Aires-Argentina Unidad Regional de Invest Laboratorio de Toxicologia Veterinaria-Estación Experimental Agropecuaria Balcarce (INTA) Balcarce Buenos Aires Argentina.

The relationship between observed early teeth wearing in cattle and the existence of large areas where excess nuoride in underground water prevails in Argentina, but has never been studied. Average values of bone fluoride exceeding 5000 ppm and well water containing up to 10.5 ppm of this element were found in a farm (ETWF) where early teeth wearing is observed, while in a control farm (NETWF), those values were 1480 ppm and 3.0 ppm respectively. Urine samples from animals from the ETWF contained almost 4 times more fluoride than those from the *** in both farms contained about the same levels of fluoride (15 to 25 ppm). None of the farms was exPosed to industrial, volcanic, or geothermal activity. Lactating and adult animals were transferred from one farm to the other. After 30 months, adult animals from the NETWF showed no damage in teeth, while adults from the ETWF continued a rapid teeth wearing. Young animals from the NETWF developed severely damaged permanent teeth, while young animals from the ETWF developed normal teeth. We concluded that the problem exists in the ETWF and being a standard farm, the condition could be extrapolated to other areas

关键词： ppm Fluoride-induced Early Teeth Wearing in Argentinian Cattle

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南极洲罗斯海西部的双层海底模拟反射层

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世界地震译丛 2013年第5期44卷 102-117页

作者： R.Geletti M.busetti 王威(译) 不详国家海洋局第二海洋研究所

给出了维多利亚地盆地(南极洲罗斯海西部)存在天然气水合物和游离气的地震学证据。由海底模拟反射层(BSR)推断存在天然气水合物,这在罗斯海是第一次。通过对意大利"特殊使命"号调查船(OGS-Explora)在1990年采集的多道地震反射数据(120道... 详细信息

给出了维多利亚地盆地(南极洲罗斯海西部)存在天然气水合物和游离气的地震学证据。由海底模拟反射层(BSR)推断存在天然气水合物,这在罗斯海是第一次。通过对意大利"特殊使命"号调查船(OGS-Explora)在1990年采集的多道地震反射数据(120道3 000m的接收缆,60次覆盖)的面向对象的再处理,来分析这种气体的存在。为了提高信噪比,采用真振幅方法再处理地震数据,并允许后续的振幅偏移偏差(AVO)分析提取有关P波和S波反射特性的信息。沿着从深海盆到盆内构造凸起的剖面,海底模拟反射层演进成横切反射层(CCR)和振幅增强反射层(EAR)。在局部地方,另一个地震事件被解释成第二个海底模拟反射层(BSR0),是在第一个海底模拟反射层之下约150m处识别出的,可能与包含甲烷和带有重分子的烃类混合气体存在有关,因此还伴有更深的水合物稳定带。断层的存在控制着上升气体的迁移,连接着海底模拟反射层之下的游离气和海底上的泥火山和麻坑。水合物平衡带的模拟表明,在当前的压力和温度条件下观测到的海底模拟反射层和第二海底模拟反射层应该是稳定的。

关键词：反射层罗斯海南极洲模拟海底西部天然气水合物水合物稳定带

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提高轮胎性能的新型高顺式聚丁二烯

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橡胶参考资料 1994年第6期24卷 17-20页

作者： L.Colombo S.busetti A.Di Pasquale 李婷

1 前言聚丁二烯的主要应用领域是轮胎制造。聚丁二烯与大然橡胶或丁苯橡胶的共混胶用于许多轮胎部件,如胎侧、胎面、胎体以及轮辋沿口保护层。众所周知。

关键词：顺丁橡胶轮胎性能催化剂

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