Estimasi Sumberdaya Nikel Laterit Dengan Metode  in Verse Distance Weight  Pada  Kabupaten Konawe Utara Provinsi Sulawesi Tenggara

Anshariah, Anshariah

doi:10.33536/jg.v4i1.36

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Kabupaten Konawe Utara adalah salah satu daerah yang memiliki potensi sumberdaya nikel terbesar di Sulawesi Tenggara. Potensi nikelnya yang mencapai ±2.974.688 ton (Anshariah et al, 2016) dari total 97,4 miliar ton potensi nikel Sulawesi Tenggara diikuti dengan Izin Usaha Pertambangan (IUP) yang beroperasi sebanyak 157 IUP (Prasetyo et al, 2015). Dokumen Rencana Pembangunan Jangka Menengah Daerah Kabupaten (RPJMD) Konawe Utara 2016 -2021 menjelaskan bahwa terdapat rencana pengembangan industri pertambangan secara terbatas di beberapa wilayah kecamatan, salah satunya adalah Kecamatan Molawe.…”

Section: Pendahuluanunclassified

Sebaran dan Kontaminasi Logam Berat Nikel (Ni) pada Sedimen di Pesisir Desa Tapuemea dan Tapunggaya, Kabupaten Konawe Utara, Sulawesi Tenggara

Adidharma,

Takarina,

Supriatna

et al. 2023

Jurnal Kelautan Nasional

View full text Add to dashboard Cite

Besarnya potensi Nikel di Sulawesi Tenggara berefek pada tingginya aktifitas eksploitasi tambang nikel di wilayah ini, khususnya di Desa Tapuemea dan Tapunggaya, Kecamatan Molawe Kabupaten Konawe Utara. Metode penambangan terbuka (Opet-pit mining) yang digunakan di wilayah ini, menyebabkan masuknya material padat yang membawa unsur logam berat dari daratan ke perairan. Penelitian ini bertujuan untuk mengetahui konsentrasi, sebaran dan tingkat kontaminasi logam berat nikel dalam sedimen di Perairan Desa Tapuemea dan Tapunggaya. Pengambilan data dilakukan pada Bulan Maret 2020 di pesisir Desa Tapuemea dan Desa Tapunggaya, Kecamatan Molawe. Sampel sedimen dianalisis menggunakan metode Spektrofotometri Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa konsentrasi logam berat nikel dalam sedimen berkisar antara 3,922 hingga 34,08 mgkg-1, dan hasil tersebut dikategorikan cukup tercemar menurut US EPA-2004. Konsentrasi Ni tertinggi berada di dekat area pertambangan dan jetty aktif untuk kegiatan bongkar muat material tambang, dan kemudian konsentrasinya menurun secara linear ke arah timur hingga mencapai konsentrasi terendah di muara sungai. Hasil penilaian tingkat pencemaran indeks geoakumulasi (Igeo) dan faktor kontaminasi (CF) menunjukkan bahwa sampel sedimen berada dalam kisaran tercemar sedang dan tercemar sedang hingga berat.

show abstract

Section: Pendahuluanunclassified

Sebaran dan Kontaminasi Logam Berat Nikel (Ni) pada Sedimen di Pesisir Desa Tapuemea dan Tapunggaya, Kabupaten Konawe Utara, Sulawesi Tenggara

Adidharma,

Takarina,

Supriatna

et al. 2023

Jurnal Kelautan Nasional

View full text Add to dashboard Cite

show abstract

“…The product targeted by the company is an ore which has a Ni content of 1.8%. Cut off grade or limit grade where the grade below has metal or mineral content in rock that does not meet economic requirements (Heriyawan et al, 2005(Anshariah, 2016Syah et al, 2018;Thamsi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Classification of Ni Levels for Determination Cut-Off Grade in Region X

Jafar

Wahid

Widodo

2022

Journal of Geology and Exploration

View full text Add to dashboard Cite

The need for ore with levels above 1.8% presents the author's initiative to conduct research to produce ore products with the required levels. The aim is to find out the lowest grade of ore that can be mined and used as a cut-off grade in area x. The research method used is the blending method. Some of the data needed include the drill point coordinates, the borehole's depth, the borehole, the slope of the borehole, lithology, and the value of Ni content. The distribution of nickel in the x region is dominated by ore which has a grade of 1 to 2% with a total volume of 140,100 Bcm, and there is a small amount of nickel that has a rate above 2% with an importance of 15,650 Bcm. The mining sequence has been divided into three to three stages, where the tonnage obtained from each location is 8,9937 tons, 442361 tons, and 100,554 tons. The simulation of blending steps was carried out starting from the classification of nickel with the highest grade, namely nickel with the lowest rate of 1.8% with an average rise of 2.07%, to the last stage, which produces a middle grade of 1.9%, namely in the classification of nickel with rates above 1.6 %. From the results of the blending simulation that has been carried out, it can be concluded that the lowest grade that can be used as a cut-off grade in area x is ore with a Ni content of 1.6%.

show abstract

“…Block modeling techniques are widely applied in the modeling and calculation methods of mineral resources in the mining industry. This technique has generally been done computerized (Anshariah, 2016;Ramadhan et al, 2022;Thayib et al, 2017). The distribution of resources/reserves in these blocks is able to make it easier for us to do quality assessments so that a quality distribution can be produced with location details (coordinates) and block unit volumes that are adjusted to the mining dimensions (Afriandi, 2015;Mustika, 2016).…”

Section: Introductionmentioning

confidence: 99%

Block Model of Laterite Nickel Reserve in the Sorowako Village Research Area, South Sulawesi Province

Nurjayanty

Djamaluddin

Budiman

2022

Journal of Geology and Exploration

View full text Add to dashboard Cite

The manufacture of laterite nickel deposit model blocks is one of the stages after exploration activities are carried out in an area that shows potential resources that are feasible to be exploited. The purpose of this study was to determine the tonnage value of an estimated resource of saprolite and limonite ore deposits in the drilling area. The research method is the implementation of fieldwork, which includes a survey of the area to be drilled, tools and materials used in drilling production, and determining the stages in making model blocks. The data used in this study are data from analysis of nickel content, data on the total depth of drill points, lithology data of laterite nickel profiles, and data on coordinates and elevation of drill points. In research conducted in the concession area of the research area with a number of drill points of as many as 275 points and a drill spacing of 25 meters and 50 meters, the number of resources that have been calculated in the form of a 3D block model and a cross-sectional vertical correlation where in the limonite layer the volume value is obtained. of 757,031 m3 with an average Ni content: 0.84%, while the saprolite layer obtained a volume value of 210,781 m3 with an average Ni content: 1.80%. The conclusion obtained is that the tonnage value for the limonite layer is 1,211,250 tons, and for the saprolite layer the tonnage value is 400,484 tons.

show abstract

Estimasi Sumberdaya Nikel Laterit Dengan Metode in Verse Distance Weight Pada Kabupaten Konawe Utara Provinsi Sulawesi Tenggara

Cited by 3 publications

References 0 publications

Sebaran dan Kontaminasi Logam Berat Nikel (Ni) pada Sedimen di Pesisir Desa Tapuemea dan Tapunggaya, Kabupaten Konawe Utara, Sulawesi Tenggara

Sebaran dan Kontaminasi Logam Berat Nikel (Ni) pada Sedimen di Pesisir Desa Tapuemea dan Tapunggaya, Kabupaten Konawe Utara, Sulawesi Tenggara

Classification of Ni Levels for Determination Cut-Off Grade in Region X

Block Model of Laterite Nickel Reserve in the Sorowako Village Research Area, South Sulawesi Province

Contact Info

Product

Resources

About