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10篇 您的检索式:作者名="Mohammad Saiful ISLAM"
    题名 作者 年代 出处 被引量
1珠江口盆地西部文昌A凹陷断裂特征与成因探讨显示文摘在前人勘探解释的基础上,通过三维高分辨率地震资料,应用相干属性分析等技术对区域断裂进行精细化解释.研究表明盆地内发育着典型的犁式、花状构造、旋转正断层等伸展构造样式,在珠三南断裂影响下,南部边界断裂以阶梯状排列形成断阶构造.始新世—中中新世,断裂走向在持续右旋张扭应力场下以NE→EW→NWW顺时针方向旋转,张裂强度逐渐减弱.晚始新世—早渐新世,盆地在太平洋板块俯冲后退、印亚板块碰撞、古南海向南俯冲下发育EW向断裂,晚渐新世在南海扩张事件影响下前期右旋应力场得到加强,形成大量近EW向断裂,中新世后演化为NWW向断裂.文昌A凹陷断裂构造的演化、成因机制与南海北部陆缘应力场变化一致.该研究有利于进一步了解南海北部陆缘含油气盆地的构造特征和演化规律,提高油气勘探开发的效率.张豪 栾锡武 冉伟民 王阔 魏新元 石艳锋 Mohammad Saiful Islam 王嘉 2020海洋地质与第四纪地质2020,40,4:7
2Sources and Ecological Risks of Heavy Metals in Soils Under Different Land Uses in Bangladesh显示文摘Soil heavy metal pollution, influenced by both natural and anthropogenic factors, significantly reduces environmental quality. In this study, Cr, Ni, Cu, As, Cd, and Pb in eight different land-use soils from Patuakhali District in Bangladesh were assessed. Concentrations of Cr, Ni, Cu, As, Cd, and Pb in soils were 1-87, 5-271, 4-181, 0-80, 0.2-24.0, and 5-276 mg kg-1, respectively, measured using an inductively coupled plasma-mass spectrometer. The enrichment factor, pollution load index (PLI), and contamination factor (CJ) of metal i were used to assess the ecological risk posed by metals in soils. The PLI ranged from 0.78 to 2.66, indicating baseline levels to progressive deterioration of soil due to metal contamination. However, C;of Cd ranged from 1.8 to 12.0, which showed that the studied soils were strongly impacted by Cd. Considering the severity of the potential ecological risk of a single metal, the descending order was Cd > As > Pb > Cu > Ni > Cr. Soils under all land uses showed moderate to very high potential ecological risk.Mohammad Saiful ISLAM Mohammad Kawser AHMED Mohammad Habibullah AL-MAMUN Shah Mohammad Asraful ISLAM 2019Pedosphere2019,29,5:5
3印尼马都拉海峡盆地晚渐新世至早中新世珊瑚生物礁特征及其古地理指示显示文摘马都拉海峡盆地属特提斯构造域东段,晚渐新世至早中新世裂后稳定沉降时期沉积大面积碳酸盐岩,是区内最重要的油气储层之一.为探讨该时期盆地演化模式,依据马都拉海峡盆地钻遇库炯组的钻井数据和岩心照片以及约120 km长的二维地震数据,通过井沉积相和地震相分析,将盆地地震相划分为6种类型,识别出库炯组珊瑚生物礁以区内F6反转断裂带为界具有明显的南北分区特征.依据珊瑚生物礁生长发育所需特殊环境,认为马都拉海峡盆地裂后沉降期被一系列EW向正断层分为中南部浅海陆架开阔台地区和北部相对深水区,呈现出'南高北低'的古地理特征.魏新元 栾锡武 冉伟民 鲁银涛 Mohammad Saiful Islam 王阔 张豪 张丹丹 2020地球科学2020,45,4:4
4印尼马都拉海峡盆地上新统颗粒灰岩生物礁形成和演化模式显示文摘马都拉海峡盆地北部外陆架台地发育有E-W向一字排列的颗粒灰岩生物礁体。该生物礁是有孔虫(主要为抱球虫目)壳体经过各种沉积作用形成的堆积体,发育于早上新世挤压反转期盆地北部边缘区。由于生物礁生长发育所经历的特殊性,其岩石学特征等信息常常具有标志性的反映,因此礁体的剖面反射特征和地震属性相比于围岩会存在不小的差异。这些差异为人们利用地震解释和地震属性提取技术识别生物礁奠定了基础,如在地震剖面上,生物礁往往出现对称丘状外形反射、礁前斜坡前积反射、礁内部杂乱反射和不连续强反射的特征等等。以O-2井钻遇的存在抱球虫化石的马都拉海峡盆地上新统芒杜组沉积地层为研究对象,从地质背景入手,描述了盆地的新生代构造特征和发育各时期所对应的地层。通过进行层位标定和三维地震解释,结合地震属性提取技术,同时考虑到生物礁的发育形态与环境,最终获得了盆地抱球虫颗粒灰岩生物礁在空间上的分布。最后,本文结合盆地历史上的沉积构造活动,提出反转断裂带活动是研究区控制生物礁生长的重要因素,并据此总结了马都拉海峡盆地芒杜组台地边缘生物礁的发育模式。刘嘉程 栾锡武 冉伟民 魏新元 王阔 张豪 石艳峰 鲁银涛 Mohammad Saiful Islam 2020海洋地质与第四纪地质2020,40,3:1
5Regeneration and genetic transformation of Tossa Jute (Corchorus olitorius L.)显示文摘Islam Mohammad Saiful Huda Kazi Md Kamrul Mahmud Firoz Banu Sufara Akhter Wang Myeong-Hyeon 2009Australian Journal of Crop Science2009,,5:1
6Assessment of ecological risk for heavy metals in surface sediment of an urban river in a developing country显示文摘The speed of increasing threats to the riverine water resources makes it more critical to protect the health of Old Brahmaputra River ecosystems.The current study was done to investigate the concentrations,distributions,sources,and ecological risk of heavy metals in surface sediment from the Old Brahmaputra River,Bangladesh.Samples were collected from seven sites and analyzed with an inductively coupled plasma-mass spectrometer(ICP-MS).The results showed that mean concentrations(mg/kg)of heavy metals were in the order of nickel(Ni)(44.69)>chromium(Cr)(30.16)>lead(Pb)(19.31)>copper(Cu)(17.84)>cadmium(Cd)(3.94)>arsenic(As)(2.73).The contamination factor(CF),pollution load index(PLI),enrichment factor(EF),and geo-accumulation index(I_(geo))indicated low to moderate contamination.Toxic unit analysis revealed that the studied metals from all stations posed low risk.The sediment of the study river was uncontaminated to moderately contaminated,posing a minimal ecological risk.Cd,Cr,Ni,and Pb originated from anthropogenic sources rather than geogenic sources,and caused the severity of contamination.In this regard,pollutant-based intensive monitoring of heavy metals and holistic ecological risk assessments are required to maintain a sound and healthy aquatic environment in the river.Md Saiful Islam Md Humayun Kabir Mir Mohammad Ali Md Towhidul Islam Asfia Niger Md Humayun Kabir Zulhilmi Ismail Sujat Ahmed Khalid A.Ibrahim Abubakr M.Idris 2023International Journal of Sediment Research2023,38,6:0
7墨西哥湾盆地东南部区域构造演化过程探讨显示文摘墨西哥湾盆地东南部位于北美板块与加勒比板块碰撞交汇区域,是墨西哥湾地区构造最为复杂区域。涉及两大板块,北美板块和加勒比板块;两个二级板块,尤卡坦板块和巴哈马-佛罗里达板块。在总结前人研究成果基础上,结合深海钻探计划(DSDP)钻井资料以及最新二维地震数据,通过地震相特征识别,分析研究区构造演化过程,探讨板块之间相对运动对墨西哥湾盆地东南部区域的控制作用。结果表明:(1)墨西哥湾盆地东南部现今包含北古巴前陆盆地以及盆地北部被动大陆边缘的不规则中央裂陷区;(2)该区域经历多期构造活动,早侏罗世至中侏罗世中期南美板块与北美板块之间背向分离,白垩纪加勒比板块逆冲北美板块,晚白垩世早期海平面上升以及尤卡坦台地与佛罗里达台地抬升,白垩纪末期加勒比板块北侧古加勒比弧与北美板块碰撞拼合;(3)在早白垩世晚期,由于北美板块内部尤卡坦板块与巴哈马-佛罗里达板块之间的张裂运动,发育大量张性断层,产生NW-SE走向的地堑、半地堑构造样式。王阔 栾锡武 冉伟民 魏新元 张豪 石艳锋 MOHAMMAD Saiful Islam 2020现代地质2020,34,4:0
8Synthesis,structural investigation,dielectric and magnetic properties of Zn^(2+)-doped cobalt ferrite by the sol-gel technique显示文摘Zinc substituted cobalt ferrite nanoparticles with elemental composition Co_(1-x)Zn_(x)Fe_(2)O_(4)(x=0.0,0.2,0.4,0.6)were prepared by the sol-gel auto-combustion technique using Co,Fe,Zn nitrate as a precursor where nitrates to citrate was 1:3.The as prepared powder of cobalt zinc ferrite was sintered at 900○C for 3 h.Structural,morphological,dielectric and magnetic properties were studied by x-ray diffractometer(XRD),scanning electron microscope(SEM),high precision impedance analyzer and vibrating sample magnetometer(VSM),respectively.The peaks obtained from the XRD confirmed samples having crystallite(32–36 nm)single phase inverse spinel structure without any traceable impurity.Lattice parameters were calculated from XRD and it increases with Zn content.SEM revealed irregularly shaped grains(-0.5–0.7μm)morphology with heterogeneous distribution.The dielectric constant(ε′)and dielectric loss(tanδ),have been measured as a function of frequency at room temperature.The dependence of ε′ and tan δ with frequency showed the normal dielectric behavior in accordance with the Maxwell-Wagner type of interfacial polarization and electron hopping change between Co^(2+)and Co^(3+)as well as between Fe^(2+)and Fe^(3+)ions at octahedral sites.Mohammad Sajjad Hossain MdBadiul Alam Mohammad Shahjahan Most.Hosney Ara Begum MdMoazzem Hossain Suravi Islam Nazia Khatun Mukul Hossain Mohammad Saiful Alam Md.Al-Mamun 2018Journal of Advanced Dielectrics2018,8,4:0
9Distribution of heavy metals in water and sediment of an urban river in a developing country:A probabilistic risk assessment显示文摘River water and sediment embody environmental characteristics that give valuable eco-environmental information.Due to rapid industrialization,the aquatic environment of any urban river can be seriously polluted by heavy metals(HMs).The global concern is caused by heavy metal pollution because of its potential harm to aquatic ecosystems and human health.In the Bhairab River,Bangladesh,surface sediment concentrations of globally alarming toxic metals such as arsenic(As),chromium(Cr),cadmium(Cd),and lead(Pb)were measured to determine the ecological and human health risks of the riverine ecosystem.The average As,Cr,Cd,and Pb concentrations in water were 3.55,31.74,1.44,and 23.82 mg/L,respectively,and in sediment were 4.13,34.17,1.66,and 25.46 mg/kg,respectively.During the winter,metals in sediment were higher than during the summer.For most sediment samples,the enrichment factor(EF),contamination factor(CF),geoaccumulation index(Igeo),pollution load index(PLI)of As,Cr,Cd,and Pb indicated moderate contamination.The potential ecological risk(PER)in sediment followed the descending order of Cd>As>Pb>Cr.The contamination level of toxic metals implied that the condition is frightening and probably severely affecting the aquatic ecology of this riverine ecosystem.Mir Mohammad Ali Saima Rahman Md Saiful Islam Md Refat Jahan Rakib Shaharior Hossen Md Zillur Rahman Tapos Kormoker Abubakr M.I.dris Khamphe Phoungthong 2022International Journal of Sediment Research2022,37,2:0
10逐步建立亚太空间合作组织框架下的潜在冲突解决机制显示文摘Competition among countries has evolved from just on Earth but into space as space technology and space power is a key attribute in the world today.Today space technology has spread,due to the enormous develop-ment,into every sector of life in the Earth for the beneft of mankind.Every country has the ambition to be a part of the space itiative.Asia Pacific Space Cooperation Organization(APSCO)is an organization that tries to promote space acivities through cooperation in the Asia Pacific region.This paper attempts to explore the nature and categories of potential conflict that may arise under the APSCO framework program.Furthermore,it also endeavors to establish an effective and better dispute settlement mechanism under the overal APSCO framework.Finally,this paper introduces the institutional framework and working procedures of the arbitration body for future smooth cooperation and space exploration by APSCO.Mohammad Saiful Islam 2020Aerospace China2020,21,1:0
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