Malaysian Journal of Geosciences最新文献_第4页

A GEOSPATIAL- STATISTICAL APPROACH TO ALIENATE PRIORITY AREA OF UPPER WATERSHED OF RIVER SUBARNAREKHA USING MORPHOMETRIC ASSESSMENT FRAMEWORK 基于形态计量评价框架的亚纳列喀河上游优先区疏解的地理空间统计方法

Malaysian Journal of Geosciences Pub Date : 2019-01-07 DOI: 10.26480/MJG.01.2019.21.31

P. Kumar, V. Joshi

引用次数: 5

DELINEATION OF HIGH-RESOLUTION AEROMAGNETIC SURVEY OF LOWER BENUE TROUGH FOR LINEAMENTS AND MINERALIZATION: CASE STUDY OF ABAKIKILI SHEET 303 高分辨率航磁测量下海槽线与矿化的圈定:以abakikili 303薄片为例

Malaysian Journal of Geosciences Pub Date : 2019-01-07 DOI: 10.26480/mjg.01.2019.51.60

C. Okpoli

{"title":"DELINEATION OF HIGH-RESOLUTION AEROMAGNETIC SURVEY OF LOWER BENUE TROUGH FOR LINEAMENTS AND MINERALIZATION: CASE STUDY OF ABAKIKILI SHEET 303","authors":"C. Okpoli","doi":"10.26480/mjg.01.2019.51.60","DOIUrl":"https://doi.org/10.26480/mjg.01.2019.51.60","url":null,"abstract":"High resolution aeromagnetic dataset of Abakiliki (sheet 303 SW) was used for the characterization of the subsurface lithostructural features in part of the Lower Benue Trough, Nigeria. This study was necessitated for mapping and delineating hydrocarbon prospecting zones, in order to boost the Nation’s economy. The aeromagnetic data were subjected to several forms of filtering, reductions, and enhancement techniques for both qualitative and quantitative interpretations. The result of the reduction to equatortotal magnetic intensity (RTE-TMI) revealed the magnetic intensity of subsurface rocks ranging from 34.14nT to 61.40nT. These range of magnetic intensity values characterized the rocks in the area as shale and Limestone within the Asu River Group, Awgu shale, Eze-AKu shale and Nkporo shale. The upward continued RTE-TMI data to 500m, 1 km, 2 km, 3 km, 7 km and 10 km revealed regional trends of these rocks and structure thin –out with measure depth continuation. The second vertical derivative (SVD), Tilt-angle derivative (TDR) and Analytical signal (AS) revealed three (3) major faults; F1-F11, F2F12 and F3-F13 in NE-SW, ENE-WSW and NW-SE directions respectively. The depth to top of magnetic source were revealed by the radially averaged power spectrum (RAPS) and Euler deconvolution as 27m and 2.64km for shallower and deeper sources respectively. This study has demonstrated the efficiency of aeromagnetic methods, with their improved techniques as tools for regional mapping of lithologies and structures that may host important minerals and/or aid hydrocarbon accumulation and their probable depths.","PeriodicalId":53054,"journal":{"name":"Malaysian Journal of Geosciences","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87054603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

ATTENUATION OF WATER-BOTTOM MULTIPLES: A CASE STUDY FROM SHAL LOW MARINE IN THE NIGER DELTA, NIGERIA 海底倍数的衰减:以尼日利亚尼日尔三角洲浅海为例

Malaysian Journal of Geosciences Pub Date : 2019-01-01 DOI: 10.26480/mjg.01.2019.61.65

Dora B. Umoetok, Etim D. Uko, Aminayanasa P. Ngeri

引用次数: 2

HEAVY METALS IN WATER AND SEDIMENT FROM LIWAGU RIVER AND MANSAHABAN RIVER AT RANAU SABAH 沙巴州利瓦古河和曼沙哈班河的水和沉积物中的重金属

Malaysian Journal of Geosciences Pub Date : 2018-08-01 DOI: 10.26480/MJG.02.2018.26.32

Rohana Tair, Sheyron Eduin

引用次数: 8

THE ECONOMIC IMPACTS OF REHABILITATION OF SELABAT MUDFLATS NATURE RESERVE, KUCHING, SARAWAK 沙捞越州古晋西拉巴特泥滩自然保护区修复的经济影响

Malaysian Journal of Geosciences Pub Date : 2018-08-01 DOI: 10.26480/GBR.02.2018.31.33

ukrimah Abdullah, Mohd Parid Mamat, Abang Ahmad Abang Morni, Thanlany Kamri, M. Yacob, L. H. Fui

{"title":"THE ECONOMIC IMPACTS OF REHABILITATION OF SELABAT MUDFLATS NATURE RESERVE, KUCHING, SARAWAK","authors":"ukrimah Abdullah, Mohd Parid Mamat, Abang Ahmad Abang Morni, Thanlany Kamri, M. Yacob, L. H. Fui","doi":"10.26480/GBR.02.2018.31.33","DOIUrl":"https://doi.org/10.26480/GBR.02.2018.31.33","url":null,"abstract":"Coastal erosion is a concern to coastline management, and it affects the socio-economic well-being of local communities. The rehabilitation of Selabat Mudflats Nature Reserve (SMNR) in Sarawak is one of the most impressive achievements of the “Mangrove and Suitable Tree Species Planting at the National Coastline Program” implemented by the Ministry of Natural Resources and Environment (NRE). The rehabilitation efforts began in 2009, where 20 hectares of Rhizophora mucronata were planted and followed by an additional 1.7 hectares of Casuarina equisetifolia. Previously, this area was a sandy coastline where coastal erosion occurred every year causing local loss of land and properties. However, through conservation and rehabilitation efforts, this area was restored and is now able to generate more income for local communities as well as playing a protective role against coastal erosion caused by coastal waves and strong winds. In 2016, this study was conducted to assess the economic impacts of SMNR rehabilitation. The findings from a sample of 42 households showed that the income generated for local communities around SMNR amounted to RM250, 320 per month or RM3, 003,840 per year. A non-user survey of 401 samples was also conducted, using Contingent Valuation Method to estimate the economic value of SMNR rehabilitation. The result showed the economic value of rehabilitation of SMNR was RM39 million for the year 2016 or RM195, 980 per hectare. These findings showed that the function of rehabilitation and conservation of mangroves forests against coastal erosion brings positive economic impacts. Rehabilitation and conservation of mangrove areas in Malaysia should be given more attention as global warming and rising sea level are going to have negative impacts on coastal settlements. Wise decision-making in the utilisation and allocation of limited resources is important particularly in the context of conflict between conservation and other development that led to its destruction.","PeriodicalId":53054,"journal":{"name":"Malaysian Journal of Geosciences","volume":"133 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79357067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

PHYSICAL IMPACT OF SEA LEVEL RISE TO THE COASTAL ZONE ALONG THE EAST COAST OF PENINSULAR MALAYSIA 海平面上升对马来西亚半岛东海岸沿海地区的物理影响

Malaysian Journal of Geosciences Pub Date : 2018-08-01 DOI: 10.26480/MJG.02.2018.33.38

I. Ismail, Wan Salihin Wong Abdullah, R. Zakaria

引用次数: 5

ANALYSIS OF SEVERAL HYDROLOGICAL-DROUGHT DURATION PARAMETERS IN MENGALONG RIVER BASIN, SIPITANG, SABAH 沙巴州泗必塘孟龙河流域若干水文干旱持续时间参数分析

Malaysian Journal of Geosciences Pub Date : 2018-08-01 DOI: 10.26480/MJG.02.2018.22.25

Nordin Sakke, Mohamad Tahir Mapa, A. Saudi

引用次数: 3

INCEPTION OF 3Es IN PROMOTING DISASTER RESILIENT COMMUNITIES LIVING NEAR HYDROPOWER DAMS OF PENINSULAR MALAYSIA 启动3e计划，促进马来西亚半岛水电大坝附近的抗灾社区

Malaysian Journal of Geosciences Pub Date : 2018-08-01 DOI: 10.26480/MJG.02.2018.17.21

S. Thiruchelvam, R. S. Muda, Azrul Ghazali, Fatin Faiqah Norkhairi, K. N. Mustapha, N. Yahya, R. Sulaiman, Z. C. Muda

引用次数: 0