Cara Mudah Belajar Mengetahui Potensi EMAS serta Eksplorasinya

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Anda pasti Bisa!

EMAS merupakan logam mulia yang populer ditambang sejak ribuan tahun yang lalu. Hal tersebut dikarenakan EMAS merupakan logam yang mudah ditambang, mudah diolah, dan menghasilkan keuntungan besar. Mencari EMAS merupakan hal yang tidak sulit, tidak diperlukan keahlian yang khusus untuk mencari EMAS, yang anda perlukan adalah keinginan anda untuk meluangkan waktu membaca tulisan ini SEBENTAR SAJA!!

 

Langkah-Langkah yang harus anda lakukan adalah:

1. Mengenali apakah terdapat daerah anda memiliki potensi mengandung emas atau tidak.

2. Lakukan survei lapangan, ambil contoh batu dan lakukan pengujian dengan HCl dan Merkuri.

3. Jika positif mengandung emas lakukan perhitungan keuntungan emas jika akan dilakukan penambangan.

Ketiga langkah tersebut mudah dipelajari melalui artikel yang saya susun dengan ringkas dan bahasa yang mudah dimengerti oleh orang awam. Hanya dengan meluangkan waktu anda beberapa jam untuk membaca artikel tersebut maka anda dapat memiliki pemahaman yang dasar yang sangat berguna untuk mengerti tentang emas dan mencari keberadaan emas. Jika berminat klik link dibawah:

Cara Mendapatkan Artikel Emas

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Dimanakah Tempat Diskusi Tentang Emas Paling Tepat?

Saya telah membuat tempat khusus bagi teman-teman yang ingin sharing ilmu atau mencari informasi tentang prospeksi, eksplorasi, dan eksploitasi emas. Silahkan kunjungi:

Gold Mining Discussion

Sekali lagi jika ingin mencari info tentang emas atau ingin sharing tentang emas silahkan kunjungi link diatas. Selain itu anda juga dapat mencari informasi tentang investasi atau jasa pencarian emas dengan harga yang terjangkau. Selamat menikmati!

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Laporan Penyelidikan Sementara Potensi Emas di Geger Bitung

Hegarmanah adalah suatu desa di Kecamatan Gegerbitung, Kabupaten Sukabumi, Provinsi Jawa Barat yang memiliki potensi emas. Kegiatan penambangan emas di daerah Hegarmanah dan sekitarnya tidak dapat langsung dilakukan karena cadangan emas yang tersedia belum terukur sehingga keuntungan total yang mungkin diperoleh belum dapat diperkirakan. Penyelidikan kandungan emas yang ada di Hegarmanah dapat dilakukan sebagai langkah awal untuk memperoleh gambaran umum terhadap prospek penambangan emas yang akan dilakukan.

Download Laporan Penyelidikan Sementara Potensi Emas di Hegarmanah

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BACK FOR THE FUTURE! – A FEW WORDS FROM THE AUTHORS!

TERIMA KASIH BANYAK DAN MOHON MAAF

Saya ucapkan TERIMA KASIH BANYAK untuk para pembaca setia Hydrogeology World dan para pembaca yang menjadi kontributor selama saya ada proyek dengan USGS. Saya MOHON MAAF selama hampir setahun tidak bisa update informasi dalam blog ini. Terus ikuti blog ini karena mulai sekarang saya akan update blog ini sesering mungkin dengan tambahan informasi-informasi yang berguna, semoga bermanfaat.

Hormat saya,

Alva Kurniawan

THANKS SO MUCH AND I’M SO SORRY

THANK YOU VERY MUCH for Hydrogeology World’s reader and the reader who becomes contributor when I was on project with USGS. I’M SO SORRY that in close to one year I could not update the information in this blog. Please keep reading this blog because I will update the information in this blog as often as possible with a lot of useful information.

Regards,

Alva Kurniawan

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Electrical Resistivity Tomography for Karst Hydrogeology Application

Underground cave can be detected by Electrical Resistivity Tomography or ERT method (Zhou et al, 2000). Forward modeling was conducted to make spatial model of caves. Caves that were made by forward modeling were as cavities not as conduits. The spatial model of caves is shown on Figure 1.

Figure 1. Spatial model of caves

The model comprises of three main things such as cavities, water, and limestone. The true resistivity value of water would be 10-100 Ohm meter, and then for limestone would be 40-500 Ohm meter (Loke, 2000). The cavities would have different true resistivity values, the cavity that is fully filled with air would have very high resistivity value (the resistivity value of air was defined in 2000 Ohm meter). The cavity that filled with little amounts of water would have smaller resistivity value then the resistivity value would be getting smaller as the increasing of water amounts on the cavity. The resistivity model that represent the spatial model of caves is shown on Figure 2.

Figure 2. Resistivity model of cave's cavities

Simulation of DC current injection was conducted on the resistivity model by using Res2DMod software. Double Dipole configuration was chosen because of its advantages, better data resolution and less noises (Bernard et al, 2004).The result of apparent resistivity calculation from resistivity model is shown on Figure 3. Noises of apparent resistivity value from the calculation is assumed as 0 %. The real condition of caves environment actualy contributes high noise on the apparent resistivity calculation so 10 % noise value was put on the data to represent the real condition.

Figure 3. Apparent resistivity calculation from resistivity model

Res2DInv software was used for calculating true resistivity value from calculated apparent resistivity value of the model. Combination of Marquardt-Smoothness Constrained Least Square Inversion was chosen to get better result of resistivity pseudosection (Figure 4). Based on resistivity pseudosection, cavity that is fully filled with air would be easier to be detected by its high resistivity value, then cavity that is fully or mostly filled with water would be easier to be detected by its low resistivity value. The cavity that is filled with little amounts of water would be harder to be detected because the resistivity pattern on the resistivity pseudosection appears in disordered shape that not represent a cavity shape.

Figure 4. Resistivity pseudosection of cave's cavity

REFERENCES:
Bernard, Jean, & Orlando Leite, Fabrice Vermeersch. 2004. Multi-Electrode Resistivity Imaging for Environmental and Mining Application. Orleans: IRIS.
Loke, M. H. 2000. Electrical Imaging Survey for Environmental and Engineering Studies. 06/03/2009. http://www.geometrics.com.
Zhou, W., & B. F. Beck, J. B. Stephenson. 2000. Reability of Double-Dipole Electrical Resistivity Tomography for Defining Depth to Bedrock in Covered Karst Terranes. Environmental Geology, 39, 7.

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Water Balance Software – HW’S WAT-B

HW’S WAT-B is software for Water Balance calculation from rainfall and evapotranspiration data. HW’s WAT-B is easy to be used and also it could be used and compatible in all versions of Windows (including Windows Vista and Windows 7).  Unfortunately this software only has image file as an output (printscreen image) and this software couldn’t be used as database software. Overall, this software is very useful for compiling Water Balance report.

This software is free, click this link below to download it

Download HW’S WAT-B

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Block Modeling of Gunungsari’s Rocks Electrical Property from Crossed Boreholes Rho Data

Block modeling of rho data could be conducted to obtain the three dimension distribution of rho value. Research was conducted on Gunungsari Hill in Magelang, Central Java Indonesia. The main purpose of this research was for proving that two dimensional rho data can be modeled into block model while they were crossed.

Rho data was obtained from ten boreholes on the peak of Gunungsari Hill. Each borehole coordinate was plotted on Rockworks software. Block model was created by interpolating rho data on boreholes within Anisotropy Inverse-Distance Algorithm.

Interpolation of two dimensional rho data from crossed boreholes lines formed block model. Crossed lines acted as planes in four directions those formed blocky shaped model. Making rho block model with crossed boreholes lines is recommended for project with limited funding.

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