日本枪乌贼的营养成分分析   总被引：2，自引：0，他引：2  

刘玉锋  毛阳  王远红  吕志华 《中国海洋大学学报(自然科学版)》2011,(Z1):341-343

本文采用国家标准营养分析方法及仪器分析方法测定了日本枪乌贼的营养成分。结果表明,日本枪乌贼中粗蛋白含量9.29%,粗脂肪含量1.43%,水分含量85.82%,灰分含量1.79%;18种氨基酸占总干重的55.09%,8种必需氨基酸占氨基酸总量的44.46%,必需氨基酸与非必需氨基酸比值0.80;多不饱和脂肪酸二十二碳六烯酸DHA、二十碳五烯酸EPA、二十碳四烯酸ARA及十八碳二烯酸LA之和占总脂肪酸含量的24.94%;富含无机元素镁,磷,钙,锌。日本枪乌贼蛋白质含量较高,必需氨基酸含量较丰富,粗脂肪含量较低,是营养价值较高的一种海产品。  相似文献   

Prediction of Seafloors Polymetallic Sulphides Resources in the North Atlantic Ridge Area   总被引：1，自引：0，他引：1  

Fang Jie  Sun Jingwen  Xu Hongqing  Ye Jinhua  Chen Jianping  Ren Mengyi  Tangchao 《地球科学进展》2015,30(1):60-68

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Ore-forming Fluid Characteristics of the Saishitang Cu-polymetallic Deposit in Qinghai Province, China     

LAI Jianqing  JU Peijiao  MAO Yin  AN Jianghu  WANG Xiongjun 《《地质学报》英文版》2015,89(2):485-504

Saishitang Cu-polymetallic deposit is located in the southeast section of Late Paleozoic arcfold in the southeastern margin of Qaidam platform. Accoring to the geological process of the deposit,four mineralization episodes were identified: melt/fluid coexisting period(O),skarn period(A),first sulfide period(B) and second sulfide period(C),and 10 stages were finally subdivided. Three types of inclusions were classified in seven stages,namely crystal bearing inclusions(type I),aqueous inclusions(type II) and pure liquid inclusions(type III). Type I and II inclusions were observed in stage O1,having homogenization temperature from 252 to 431°C,and salinities ranging from 24.3% to 48.0%. Type I inclusion was present in stage A1,having homogenization temperature from 506 to 548°C,and salinities ranging from 39.4% to 44.6%. In stage B1,type II and III inclusions were observed,with homogenization temperature concentrating between 300–400°C,and salinities from 0.4% to 4.3%. Type II inclusions were present in stage B2,with homogenization temperature varying from 403 to 550°C. In stage C1,type I and II inclusion commonly coexisted,and constituted a boiling inclusion group,having homogenization temperatures at 187–463°C,and salinities in a range of 29.4%–46.8% and 2.2%–11.0%. Type II and III inclusions were developed in stage C2,having homogenization temperature at 124–350°C,and salinities ranging between 1.6% and 15.4%. In stage C3,type II and III inclusions were presented,with a homogenization temperature range of 164–360°C,and salinities varying from 4.0% to 11.0%. The results of micro-thermal analysis show that fluids are characterized by high temperature and high salinity in stage O1 and A1,and experienced slight decrease in temperature and dramatic decrease in salinity in stage B1 and B2. In stage C1,the salinity of fluid increased greatly and a further decrease of temperature and salinity occurred in stage C2 and C3. Fluids boiled in stage C1. With calculated pressure of 22 MPa from the trapping temperature of 284–289°C,a mineralization depth of 2.2 km was inferred. Results of Laser Raman Spectroscopy show high density of H2 O,CH4 and CO2 were found as gas composition. H-O isotope study indicates the oreforming fluids were the mixture of magmatic water and meteoric water. Physicochemical parameters of fluids show oxygen and sulfur fugacity experienced a decrease,and redox state is weakly reducing. Along with fluid evolution,oxidation has increased slightly. Comprehensive analysis shows that melt exsolution occurred during the formation of quartz diorite and that metal elements existed and migrated in the form of chlorine complex. Immiscible fluid separation and boiling widely occurred after addition of new fluids,bringing about dissociation of chlorine-complex,resulting in a great deal of copper precipitation. In conclusion,Saishitang deposit,controlled by regional tectonics,is formed by metasomatism between highly fractionated mineralization rock body and wall rock,and belongs to banded skarn Cu-polymetallic deposit.  相似文献   

The Oil-Bearing Pore Size Distribution of Lacustrine Shale from E2S42 Sub-Member in Damintun Sag, Liaohe Depression, Bohai Bay Basin, China     

CHEN Guohui  LU Shuangfang  LI Jinbu  WANG Weiming  TIAN Shansi  SHAN Junfeng  HU Yingjie  MAO Jinli  HAN Xia 《《地质学报》英文版》2015,89(Z1):8-10

<正>1 Introduction There is a set of organic rich shale at E22S4sub-member in damnintun sag.The organic material is typically type I.In recent years,breakthrough was obtained in shale oil exploration.The wettability of organic and inorganic pore is different.As a result,the mobility of oil in organic and inorganic pore is different.So it’s necessary to distinguish  相似文献   

北京山区泥石流自动监测预警系统的建立与应用     

王海芝  冒建  任凯珍 《城市地质》2015,(Z1):150-155

自动监测预警系统,是目前山区突发地质灾害预警预报有效的预警模式。本系统是在详细调查的基础上,以调查数据为底层分析数据库,以.net为语言运行环境,经所建立的预警模型分析计算后,产生预警预报产品,进行预警发布。  相似文献   

嗜酸微生物与生物冶金技术     

周洪波  毛峰  王玉光 《矿物岩石地球化学通报》2015,(2):269-276

生物圈中广泛分布着自然酸性环境和人造酸性环境,为嗜酸微生物(最适生长p H3)提供了生存场所。嗜酸微生物在铁和硫等重要元素的地球化学循环等方面起着重要作用,可应用于冶金领域,具有流程短、成本低、环境友好等优势,目前已经成功地应用于铜、金、铀等金属的提取,成为世界矿物加工的前沿技术。该技术在国外已经实现工业化生产,中国也在逐步推广应用,但仍然存在浸出率和浸出效率低等问题。本文主要介绍嗜酸微生物和生物冶金技术的研究进展,为加强基础理论和应用技术研究提供启示。  相似文献   

西藏扎布耶盐湖铀源初探     

黄大友  王四利  毛建勋  徐伟  陈玉梁  刘志鹏 《铀矿地质》2015,(3):389-394

扎布耶盐湖蕴藏着丰富的矿产资源,具有超百万吨的锂矿资源。盐湖卤水中铀浓度亦很高,达到1818~3273μg·L-1,文章对该盐湖的地质背景及水中铀浓度概况进行了阐述,初步分析了其铀的来源。  相似文献   

东疆二叠纪镁铁-超镁铁岩体中辉石的成分特征及其对成岩和Ni-Cu成矿的指示   总被引：2，自引：2，他引：0  

薛胜超  秦克章  唐冬梅  毛亚晶  姚卓森 《岩石学报》2015,31(8):2175-2192

新疆东部早二叠世镁铁-超镁铁岩体主要分布在天山东段觉罗塔格构造带、中天山地块和北山地区,与这类岩体相关的Ni-Cu矿床主要产出在觉罗塔格带和中天山地区,北山目前并未发现典型Ni-Cu矿床。这些岩体中的斜方辉石主要为古铜辉石,少量为紫苏辉石;单斜辉石属透辉石、次透辉石或普通辉石。矿物成分系统变化显示橄榄石Fo值北山最高、觉罗塔格带到中天山逐次降低的特点,橄榄石Fo值在78~86和Ni含量低于1800×10-6范围内更有利于Cu-Ni成矿;斜方辉石En端元和单斜辉石Wo端元极差值也显示北山最高、觉罗塔格带和中天山较低的规律,且相对小的极差值更有利于成矿。单斜辉石AlⅣ/AlⅥ比值结果显示北山岩体在矿物结晶过程中压力较低,硫溶解度较大,可能是其矿化程度弱于觉罗塔格带和中天山的一个重要因素。觉罗塔格带、中天山和北山镁铁-超镁铁质岩体的母岩浆为非碱性系列、大陆拉斑玄武质岩浆。根据北山和觉罗塔格带岩体单斜辉石微量元素成分估算的母岩浆具有LREE富集以及Nb、Ta、Zr、Hf负异常的特征,指示出两者源区为受俯冲板片交代的地幔,且坡北源区俯冲交代程度更低。觉罗塔格带和中天山单斜辉石Alz vs.Ti显示裂谷堆晶趋势向弧堆晶趋势演化,而北山单斜辉石Alz vs.Ti则显示明显的裂谷堆晶趋势,这说明俯冲交代作用在觉罗塔格带和中天山地区表现的更为强烈。北山镁铁-超镁铁岩体中发现单斜辉石Ti的高异常及矿物温压计算结果显示,表明北山地区具有比觉罗塔格带和中天山更高的岩浆温度,这可能与塔里木二叠纪地幔柱的活动有关。  相似文献   

原特提斯洋的俯冲、增生及闭合:阿尔金-祁连-柴北缘造山系早古生代增生/碰撞造山作用   总被引：20，自引：18，他引：2  

张建新  于胜尧  李云帅  喻星星  林宜慧  毛小红 《岩石学报》2015,31(12):3531-3554

分布在青藏高原北缘的阿尔金-祁连-柴北缘早古生代造山系被认为是原特提斯构造域最北部的构造拼合体。与其北侧具有长期增生历史的中亚造山系相比,特提斯造山拼合体被认为是各种来自冈瓦纳大陆北部大陆块体相互碰撞的产物。然而,与典型的阿尔卑斯和喜马拉雅碰撞造山带相比,阿尔金-祁连-柴北缘早古生代造山系包括有大量蛇绿岩、弧岩浆杂岩、俯冲-增生杂岩等,因此一些学者认为青藏高原北部的早古生代造山系为沿塔里木和华北克拉通边界向南逐渐增生的增生型造山带。但是,增生造山模式又很难解释南阿尔金-柴北缘地区普遍存在的与大陆俯冲有关的UHP变质岩、广泛分布的巴罗式变质作用和相关的岩浆作用,以及与碰撞造山有关的变形构造等。在本文中,通过对已有研究资料的综合总结,结合一些新的研究资料,我们提出在青藏高原东北缘的阿尔金-祁连-柴北缘造山系中,早古生代时期存在两种不同类型的造山作用,即增生和碰撞造山作用,其主要标志是北祁连-北阿尔金的HP/LT变质带、蛇绿混杂岩及与洋壳俯冲有关的构造岩浆作用,以及分布在柴北缘-南阿尔金与大陆俯冲和陆陆碰撞有关的UHP变质带、区域巴罗式变质作用、深熔作用、相关的岩浆活动及伸展垮塌作用等,并建立了一个反映原特提斯洋俯冲、增生、闭合及碰撞造山作用的构造模式。  相似文献   

一种新的非差FCBs估计方法     

易文婷  陈亮  郭海林  毛勇 《测绘信息与工程》2015,40(3)

提出了一种新的非差FCBs估计方法,利用三角函数周期特性消除整周模糊度,避免了模糊度固定的难题.基于该方法,实现了PPP模糊度固定.实验结果表明,模糊度固定后,北、东、高程3个方向上的RMS分别从1.44 cm、3.37 cm、2.88 cm减小到0.75 cm、0.78 cm和2.06 cm,分别提高约47.8％、76.8％和28.5％.  相似文献