塔里木板块北部英买力-哈拉哈塘油田中-上奥陶统灰岩的生态单元类型及时空分布

在中-晚奥陶世,塔里木板块北部英买力-哈拉哈塘油田地区为向西南方向倾斜的陆表海灰岩缓坡区,东部井区的生物-沉积相显著比西区的英买201井、英买202井偏浅。达瑞威尔阶一间房组和凯迪阶良里塔格组沉积期频繁出现生屑-内碎屑滩,在东北井区尤为发育;西南井区的一间房组和良里塔格组生物-沉积相则可识别出潮下低能带沉积。一间房组上部的灰岩序列指示海进发生,之上的桑比阶吐木休克组沉积期达到最大海进而普遍沉积浪基面之下的灰泥为主的非滩相,生屑含量偏低;良里塔格组海退期平缓海底的小型藻丘和灰泥丘分布十分局限。     

塔中16井区晚奥陶世良里塔格组的沉积相

塔里木板块中央隆起区的塔中低隆带上奥陶统凯迪阶良里塔格组礁相群落是晚奥陶世生物礁演化阶段的例证。该组分为5个岩性段。塔中16井区位于塔中Ⅰ号断裂坡折带向台地内部延伸的缓坡区,海水深度和水流能量显著控制碳酸盐岩的岩相分布。良里塔格组所赋存的典型动物格架礁集中于台地边缘的高能区,而塔中16井区不属于大型动物格架礁建造的富集区域,其早期多以低能带沉积为主,特别是塔中16井和塔中166井灰泥坪常见;晚期常见高能滩相和灰泥丘以及近礁沉积,可划归为台缘坡折带大型格架礁建造向台内的延伸区,这里的水深和能量变化更频繁。偏西北的井在良二段沉积之后抬升较早,东南的塔中161井则保存部分良一段沉积。     

新疆塔里木塔中井区上奥陶统良里塔格组的生物绑结岩

塔里木板块塔中井区上奥陶统凯迪阶良里塔格组灰岩中底栖固着型的钙质微生物、钙藻以及动物苔藓虫、珊瑚、层孔虫,可通过障积、盖覆和粘结等方式形成多种类型的生物绑结岩。对15口井部分岩芯以常用的绑结岩分类方案作岩石学微相分析,并描记底栖固着型生物颗粒的形成特征。菌藻类可在内碎屑表面以包结方式形成粘结岩;钙藻,特别是分枝状钙藻可形成障积岩;层孔虫可被隐藻层纹包结,也可单独形成小型盖覆岩;床板珊瑚格架岩可大量障积生屑和灰泥基质;苔藓虫在动物格架岩比例上占优,可与菌藻类粘结岩互相包结生长,也可独立形成局部小型障积岩。对比巴楚露头区同期藻丘中的绑结岩特征,显示塔中良里塔格组代表晚奥陶世由高生物多样性形成的礁滩复合体生态群落。     

新疆顺北油田和塔河油田中—上奥陶统牙形刺生物地层

通过对新疆顺北油田B、C两井与塔河油田D井中-上奥陶统牙形刺的研究,从一间房组上部至恰尔巴克组下部识别出Dzikodus tablepointensis,Eoplacognathus suecicus,Pygodus serra和Pygodus anserinus-Yangtzeplacognathus jianyeensis等4个生物带。结合塔河油田A井的牙形刺研究,进而将两个地区的一间房组上部归为中奥陶统达瑞威尔阶中上部,恰尔巴克组归为上奥陶统桑比阶中下部,良里塔格组归为上奥陶统桑比阶中上部至凯迪阶下部,桑塔木组底部归为凯迪阶中部。顺北油田和塔河油田的中-上奥陶统牙形刺生物地层序列可以与塔里木盆地的区域标准牙形刺生物带进行对比。     

塔里木盆地晚奥陶世古海藻果实状化石及塔中油田生物母质特征

晚奥陶世良里塔格组是塔里木盆地中部油气田的主要烃源岩之一。良里塔格组有着丰富的“海草”残体。本文研究采自良里塔格组的海草的果实状化石计3新属,3新种,同时提供了一个实例,表明生物标志物与生物群之间的联系。     

塔里木盆地奥陶系苔虫多样性演变

本文研究了塔里木盆地奥陶系苔虫的分布延限和演化规律。苔虫的演化分为四个阶段:第一阶段为鹰山组—一间房组中下部沉积期,苔虫多样性和丰度均很低;第二阶段为一间房组上部—吐木休克组沉积期,苔虫的多样性处在一种波动上升的状态;第三阶段包括良里塔格组良五段—良四段沉积期,苔虫多样性和丰度均有一定程度的增加,而且绝大部分属种在接下来的第四阶段都有出现;第四阶段在良里塔格组良三段—良一段沉积期,是苔虫总体多样性明显增长的时期,也是本区奥陶纪苔虫的重要辐射期。随后,展开苔虫的多样性分析的研究。研究发现塔里木盆地奥陶系苔虫的演化趋势与世界范围的演化趋势基本一致,说明是受苔虫宏演化规律控制的。     

新疆塔里木中央隆起区中2井上奥陶统良里塔格组礁滩沉积相和测井参数

塔里木中央隆起区中2井位于塔中南坡台缘带,上奥陶统凯迪阶良里塔格组频繁出现浅水粒屑滩沉积,以及由蓝藻、钙藻兼以少量珊瑚、苔藓虫等造礁生物以不等含量分别构成生物障积或粘结型礁灰岩,棘皮类、腕足类和三叶虫等壳相生物碎屑丰富。可分出数层典型的生物礁、滩组合序列,总体显示为原地生长和近源搬运的生物礁滩复合体建造。环境的动能条件略有变化,但皆属浪基面之上的沉积深度。礁、滩储层形成模式主要受于沉积相带、成岩改造的控制,储层以生屑灰岩、藻粘结灰岩、障积灰岩及砂屑灰岩为主,储集空间类型包括次生溶蚀孔隙、晶洞与裂缝,同时伴随少量的白云岩化作用,且孔隙以深埋藏溶蚀成因为主,次生胶结作用也十分强烈,礁相储层潜力好于滩相。     

新疆塔里木板块巴麦地区志留系对比与时空分布

塔里木板块巴麦地区志留系钻井岩芯中的化石十分贫乏,很难作高精度地层划分和对比。本文综合分析柯坪-巴楚露头区及巴麦覆盖区典型钻井志留系,对巴麦地区多口主要钻井志留系岩电特征对比厘定。井下志留系自下而上可划分为早志留世柯坪塔格组、塔塔埃尔塔格组及依木干他乌组。柯坪塔格组仅发育上段,缺失中-下段,主要见于D5-B7-C2井以北地区,厚度一般在200m左右,具有北厚南薄、东厚西薄的变化;塔塔埃尔塔格组地层序列较全,均发育下部的红泥岩段与上部的上砂岩段,主要见于D5-B7-C2井以北地区,厚度一般在400m左右,最厚可大于1 000m,由南向北变厚;依木干他乌组序列较全,分布于C2-B8-C7井西部及C1-B4-B1井以北,厚度一般在200m左右,具有北厚南薄、西厚东薄的特点,最厚可达300m以上。     

塔里木塔中油田上奥陶统良里塔格组滩相

塔里木板块塔中井区上奥陶统凯迪阶良里塔格组的沉积序列由碳酸盐岩台地区礁滩复合体灰岩构成,显示晚奥陶世由高生物多样性形成的暖水浅海域生态组合。根据滩相灰岩的颗粒组成,可次分为生屑为主、生屑-内碎屑混合、内碎屑为主的三大类型,其中灰泥充填和亮晶方解石胶结均有。部分滩相是礁相单元的近源沉积,而内碎屑和生屑经各种营力改造后多以不同比例混合独立形成滩相。滩中的颗粒粒径一般多小于厘米级,仅部分核形石、珊瑚等颗粒可达到砾级,这些滩多堆积于最大风暴浪基面之上的深度。     

塔里木中央隆起区上奥陶统的牙形刺

塔里木板块中央隆起区的上奥陶统,即巴楚露头剖面吐木休克组和良里塔格组以及塔克拉玛干沙漠腹地塔中油田井下良里塔格组皆为灰岩相.作者对前人报道的牙形刺带作了修改,首次系统描述牙形刺动物群全貌,共计14属21种.在曾归入Pygodus serra带和P.anserinus带的吐木休克组底部和下部发现Yangtzeplacognathus jianyeensis,故应改为Yangtzeplacognathus jianyeensis带;吐木休克组中部因发现Baltoniodus alobatus和B.variabilis共生,应属B.alobatus带.在Yangtzeplacognathus jianyeensis带和Baltoniodus alobatus带之间尚未发现可靠的B.variabilis,因此是否存在B.variabilis带尚存疑问.巴楚露头区上奥陶统的牙形刺序列由下而上应为Yangtzeplacognathus jianyeensis带,Baltoniodus variabilis带?,B.alobatus带和Belodina confluens带.塔中的良里塔格组则可识别出B.confluens带和Yaoxianognathus yaoxianensis带.将中央隆起区牙形刺动物群组合与其相邻的柯坪地块进行对比,说明晚奥陶世因两个地理区水深的差异导致牙形刺带完整性的差异.     

Crystal structure, detonation performance, and thermal stability of a new polynitro cage compound: 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptacyclo [5.5.1.13, 11. 15, 9] pentadecane

A new polynitro cage compound 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptcyclo [5.5.1.1(3,11).1(5,9)] pentadecane (NNNAHP) was designed in the present work. Its molecular structure was optimized at the B3LYP/6-31 G(d,p) level of density functional theory (DFT) and crystal structure was predicted using the Compass and Dreiding force fields and refined by DFT GGA-RPBE method. The obtained crystal structure of NNNAHP belongs to the P-1 space group and the lattice parameters are a = 9.99 ?, b = 10.78 ?, c = 9.99 ?, α = 90.01°, β = 120.01°, γ = 90.00°, and Z = 2, respectively. Based on the optimized crystal structure, the band gap, density of state, thermodynamic properties, infrared spectrum, strain energy, detonation characteristics, and thermal stability were predicted. Calculation results show that NNNAHP has detonation properties close to those of CL-20 and is a high energy density compound with moderate stability.     

Relations of the Al,B, Ba,Br, Ca,Cl, Cu,Fe, K,Li, Mg,Mn, Na,P, S,Si, Sr,and Zn mass fractions to morphometric parameters in pediatric and nonhyperplastic young adult prostate glands

The variation with age of the 18 trace element mass fractions and some histological characteristics of intact prostate glands of 50 subjects aged 0–30 years was investigated by instrumental neutron activation analysis, inductively coupled plasma atomic emission spectrometry, and a quantitative morphometric analysis. Mean values ± standard error of the mean (M ± SΕΜ) for the mass fractions (in milligrams per kilogram wet tissue) of these trace elements in pre-puberty were: Al 28.5 ± 9.0, B 0.40 ± 0.11, Ba 1.48 ± 0.44, Br 10.5 ± 1.5, Ca 241 ± 30, Cl 3,203 ± 278, Cu 3.51 ± 0.89, Fe 33.7 ± 4.1, K 2,364 ± 145, Li 0.020 ± 0.004, Mg 153 ± 23, Mn 0.46 ± 0.06, Na 2,286 ± 130, P 1,391 ± 100, S 1,698 ± 132, Si 62 ± 11, Sr 0.38 ± 0.08, and Zn 27.6 ± 2.3. During puberty and postpuberty, when there is a significant increase in circulating androgens, the mean values were: Al 7.2 ± 1.4, B 0.21 ± 0.05, Ba 0.25 ± 0.06, Br 5.8 ± 1.0, Ca 433 ± 81, Cl 2,314 ± 201, Cu 1.77 ± 0.13, Fe 20.9 ± 1.6, K 2,585 ± 118, Li 0.0088 ± 0.0014, Mg 232 ± 27, Mn 0.34 ± 0.04, Na 1,875 ± 107, P 1,403 ± 98, S 1,673 ± 73, Si 22.2 ± 3.1, Sr 0.22 ± 0.03, and Zn 93.3 ± 8.9. Mean values (M ± SΕΜ) of percent volumes (%) of the stroma, epithelium and lumen in the prostate before puberty were 73.4 ± 2.6, 20.4 ± 1.7, and 4.45 ± 0.94, respectively, versus 46.5 ± 2.5, 38.5 ± 1.9, and 14.9 ± 1.2 during puberty and postpuberty. This work’s results confirm that the Zn mass fraction in prostate tissue is an androgen-dependent parameter. For the first time it has been demonstrated that the glandular lumen is a main pool of Ca, Mg, and Zn accumulation and that the stroma is a main pool of Al, B, Ba, Br, Cl, Cu, Fe, Mn, Na, and Si accumulation in the normal human prostate, for the age range 0–30 years. It was concluded that the Ca, Mg, and Zn binds tightly within the prostatic fluid, because the volume of glandular lumen reflects the volume of prostatic fluid.     

Distribution of N,P, K,Ca, Mg,S, Zn,Fe, Mn and Cu in groundnut

Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.     

Simultaneous measurement of the trace elements Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum and their reference ranges by ICP-MS

The goal of this article was to establish reference ranges of the concentration of trace elements in human serum and to compare these results with those reported by other authors. We describe the sample preparation and measurement conditions that allow the rapid, precise, and accurate determination of Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum samples (n=110) by inductively coupled plasma-mass spectrometry (ICP-MS). Accuracy and precision were determined by analyzing three reconstituted reference serum samples by comparison with other methods and by the standard addition procedure. The advantages of the ICP-MS method include short time of analysis of the elements mentioned, low detection limit, high precision, and high accuracy. Disadventages include a high risk of contamination due to the presence of some of the elements of interest in the environment, the relatively delicate sample handling, and the high cost of the equipment.     

The Effect of Age and Gender on Al, B, Ba, Ca, Cu, Fe, K, Li, Mg, Mn, Na, P, S, Sr, V, and Zn Contents in Rib Bone of Healthy Humans

The effect of age and gender on major, minor, and trace element contents in the intact rib bone of 80 relatively healthy 15–55-year-old women and men was investigated. Contents or upper limit of contents of 16 chemical elements in the rib bone were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Mean values (M?±?SΕΜ) for the mass fraction of Ba, Ca, Cu, Fe, K, Li, Mg, Na, P, S, Sr, and Zn (milligram per kilogram of dry bone) were as follows: 2.54?±?0.16, 171,400?±?4,050, 1.35?±?0.22, 140?±?11, 1,874?±?71, 0.049?±?0.011, 2,139?±?38, 5,378?±?88, 75,140?±?1,660, 1,881?±?51, 291?±?20, and 92.8?±?1.5, respectively. The upper limits of contents of Al, B, Mn, and V were <7.20, <0.65, <0.36, and <0.03, respectively. Statistically significant tendency for the Ca, Mg, and P content to decrease with age was found in the human rib bone, regardless of gender. The mass fraction of Fe in the male rib bone increases with age. It was shown that higher Ca, Mg, Na, P, and Sr mass fractions as well as lower Fe content were typical of female ribs as compared to those in male ribs.     

Reference values for the concentrations of As,Cd, Co,Cr, Cu,Fe, I,Hg, Mn,Mo, Ni,Pb, Se,and Zn in selected human tissues and body fluids

This report attempts to formulate reference ranges of elemental concentrations for 15 trace elements in selected human tissues and body fluids. A set of samples consisting of whole blood, blood serum, urine, milk, liver, and hair were chosen and considered for 15 elements of biological significance: As, Cd, Co, Cr, Cu, F, Fe, I, Hg, Mn, Mo, Ni, Pb, Se, and Zn. The results represent wholly or partially data received from 40 countries of the global regions of Africa, Asia, Europe, North, South, and Central America, Australia, and New Zealand. This survey, even if qualitative, has been useful in demonstrating certain trends of trace-element scenarios around the world. It is of course recognized that both diet and environment exert a strong influence on the distribution pattern of several elements, such as As, Cd, Mn, Pb, Se, and Zn. A limited comparison of the available information on soil status of different countries reflected some interesting associations for elements, such as Mn and Zn. Importantly, this study revealed that only a few countries were in a position to identify a reasonable amount of data on samples requested for this project. Regretably, for a number of countries, any dependable data for even such essential elements as Cu, Fe, and Zn were not available. In view of the nutritional importance of many elements, the time is ripe for concerted efforts by intergovernmental agencies to initiate investigations or commission task forces/projects to generate reliable reference data for selected global regions, which sadly lack data of any kind at present.     

Potential Compounds for Oral Cancer Treatment: Resveratrol,Nimbolide, Lovastatin,Bortezomib, Vorinostat,Berberine, Pterostilbene,Deguelin, Andrographolide,and Colchicine

Oral cancer is one of the main causes of cancer-related deaths in South-Asian countries. There are very limited treatment options available for oral cancer. Research endeavors focused on discovery and development of novel therapies for oral cancer, is necessary to control the ever rising oral cancer related mortalities. We mined the large pool of compounds from the publicly available compound databases, to identify potential therapeutic compounds for oral cancer. Over 84 million compounds were screened for the possible anti-cancer activity by custom build SVM classifier. The molecular targets of the predicted anti-cancer compounds were mined from reliable sources like experimental bioassays studies associated with the compound, and from protein-compound interaction databases. Therapeutic compounds from DrugBank, and a list of natural anti-cancer compounds derived from literature mining of published studies, were used for building partial least squares regression model. The regression model thus built, was used for the estimation of oral cancer specific weights based on the molecular targets. These weights were used to compute scores for screening the predicted anti-cancer compounds for their potential to treat oral cancer. The list of potential compounds was annotated with corresponding physicochemical properties, cancer specific bioactivity evidences, and literature evidences. In all, 288 compounds with the potential to treat oral cancer were identified in the current study. The majority of the compounds in this list are natural products, which are well-tolerated and have minimal side-effects compared to the synthetic counterparts. Some of the potential therapeutic compounds identified in the current study are resveratrol, nimbolide, lovastatin, bortezomib, vorinostat, berberine, pterostilbene, deguelin, andrographolide, and colchicine.     

New Coleoptera records from New Brunswick, Canada: Stenotrachelidae, Oedemeridae, Meloidae, Myceteridae, Boridae, Pythidae, Pyrochroidae, Anthicidae, and Aderidae

We report 19 new species records for the faunal list of Coleoptera in New Brunswick, Canada, six of which are new records for the Maritime provinces, and one of which is new Canadian record. We also provide the first recent records for five additional species in New Brunswick. One new species of Stenotrachelidae, Cephaloon ungulare LeConte, is added to the New Brunswick faunal list. Additional records are provided for Cephaloon lepturides Newman, as well the first recent record of Nematoplus collaris LeConte. Two species of Oedemeridae, Asclera puncticollis (Say) and Asclera ruficollis (Say), are newly reported for New Brunswick, and additional locality and bionomic data are provided for Calopus angustus LeConte and Ditylus caeruleus (Randall). The records of Ditylus caerulus are the first recent records for the province. Three species of Meloidae, Epicauta pestifera Werner, Lytta sayi LeConte, and Meloe augustcollis Say are reported the first time for New Brunswick; Epicauta pestifera is newly recorded in Canada. Lacconotus punctatus LeConte and the family Mycteridaeis newly recorded for New Brunswick. The first recent records of Borus unicolor Say (Boridae) are reported from the province. One new species of Pythidae, Pytho siedlitzi Blair, and the first recent records of Pytho niger Kirby are added to the faunal list of New Brunswick. Three species of Pyrochroidae are newly reported for the province, including Pedilus canaliculatus (LeConte) and Pedilus elegans (Hentz), which are new for the Maritime provinces. Five species of Anthicidae and the first recent record of Anthicus cervinus LaFerté-Sénectére are newly reported for New Brunswick. Anthicus melancholicus LaFerté-Sénectère, Sapintus pubescens (LaFerté-Sénectère), Notoxus bifasciatus (LeConte), and Stereopalpus rufipes Casey are new to the Maritime provinces faunal list. Ambyderus granularis (LeConte) is removed from the faunal list of the province. Three species of Aderidae, Vanonus huronicus Casey, Zonantes fasciatus (Melsheimer), and Zonantes pallidusWerner, are newly recorded for New Brunswick; Zonantes fasciatus and Vanonus huronicus are new for the Maritime provinces' faunal list. Collection data, bionomic data, and distribution maps are presented for all these species.