Geochemistry of Sedimentary Carbonates (Developments in Sedimentology)

By J.W. Morse, F.T. Mackenzie

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* Publisher: Elsevier Science
* Number Of Pages: 724
* Publication Date: 1990-08-01
* ISBN-10 / ASIN: 0444887814
* ISBN-13 / EAN: 9780444887818

Product Description

Paperback. This book covers the more basic aspects of carbonate minerals and their interaction with aqueous solutions; modern marine carbonate formation and sediments; carbonate diagenesis (early marine, meteoric and burial); the global cycle of carbon and human intervention; and the role of sedimentary carbonates as indicators of stability and changes in the Earth's surface environment. The selected subjects are presented with sufficient background information to enable the non-specialist to understand the basic chemistry involved. Tested on classes taught by the authors, and approved by the students, this comprehensive volume will prove itself to be a valuable reference source to students, researchers and professionals in the fields of oceanography, geochemistry, petrology, environmental science and petroleum geology.

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Reservoir Sandstones

Yang ngakunya anak perminyakan, udah ada apa blm buku yang satu ini??? Buku yang sebenarnya (dalam posting ini hanya sampai chapter 7 (333 halaman) dari 9 chapter) memiliki ketebalan 470an halaman membahas tentang Reservoir Sandstones ini berisi antara lain PROPERTIES SANDSTONES,SEDIMENTARY PROCESSES, INTERPRETATION OF RESERVOIR MORPHOLOGY, EOLIAN SANDSTONES, FLUVIAL SANDSTONES, DELTAIC SANDSTONES dan COASTAL SANDSTONE. Buku karangan ROBERT R BERG ini dapat anda download gratis di sini. Untuk mendownload buku terbitan TEXAS A&M UNIVERSITY sebesar 28,8 Mb ini silahkan DOWNLOAD DI SINI!

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Reflection Seismic Methode (Metode Seismik Refleksi)

Lama sebelum posting ini dibuat, telah diposting metode seismik secara umum, baik seismik refleksi (pantul) maupun seismik refraksi (bias). Dalam kesempatan ini akan dibahas secara khusus seismik Refleksi(pantul). Dalam kesempatan ini anda dapat mendownload tentang seismik refleksi dalam format pdf yang berbahasa Inggris. Selamat menikmati!!!

Metode seismik refleksi merupakan metode geofisika yang umumnya dipakai untuk penyelidikan hidrokarbon. Biasanya metode seismik refleksi ini dipadukan dengan metode geofisika lainnya, misalnya metode grafitasi, magnetik, dan lain-lain. Namun metode seismik refleksi adalah yang paling mudah memberikan informasi paling akurat terhadap gambaran atau model geologi bawah permukaan dikarenakan data-data yang diperoleh lebih akurat.

Pada umumnya metode seismik refleksi terbagi atas tiga tahapan utama, yaitu:

1. Pengumpulan data seismik (akuisisi data seismik): semua kegiatan yang berkaitan dengan pengumpulan data sejak survey pendahuluan dengan survey detail.
2. Pengolahan data seismik (processing data seismik): kegiatan untuk mengolah data rekaman di lapangan (raw data) dan diubah ke bentuk penampang seismik migrasi.
3. Interpretasi data seismik: kegiatan yang dimulai dengan penelusuran horison, pembacaan waktu, dan plotting pada penampang seismik yang hasilnya disajikan atau dipetakan pada peta dasar yang berguna untuk mengetahui struktur atau model geologi bawah permukaan.


Metode seismik refleksi mengukur waktu yang diperlukan suatu impuls suara untuk melaju dari sumber suara, terpantul oleh batas-batas formasi geologi, dan kembali ke permukaan tanah pada suatu geophone. Refleksi dari suatu horison geologi mirip dengan gema pada suatu muka tebing atau jurang.Metode seismik refleksi banyak dimanfaatkan untuk keperluan Explorasi perminyakan, penentuan sumber gempa ataupun mendeteksi struktur lapisan tanah.

Seismik refleksi hanya mengamati gelombang pantul yang datang dari batas-batas formasi geologi. Gelombang pantul ini dapat dibagi atas beberapa jenis gelombang yakni: Gelombang-P, Gelombang-S, Gelombang Stoneley, dan Gelombang Love.

Dalam seismik pantul, analisis dikonsentrasikan pada energi yang diterima setelah getaran awal diterapkan. Secara umum, sinyal yang dicari adalah gelombang-gelombang yang terpantulkan dari semua interface antar lapisan di bawah permukaan. Analisis yang dipergunakan dapat disamakan dengan echo sounding pada teknologi bawah air, kapal, dan sistem radar. Informasi tentang medium juga dapat diekstrak dari bentuk dan amplitudo gelombang pantul yang direkam. Struktur bawah permukaan dapat cukup kompleks, tetapi analisis yang dilakukan masih sama dengan seismik bias, yaitu analisis berdasar kontras parameter elastisitas medium.


Perbandingan metode seismik dengan metode geofisika lainnya

Keunggulan :

1.Dapat mendeteksi variasi baik lateral maupun kedalaman dalam parameter fisis yang relevan, yaitu kecepatan seismik.
2.Dapat menghasilkan citra kenampakan struktur di bawah permukan
3.Dapat dipergunakan untuk membatasi kenampakan stratigrafi dan beberapa kenampakan pengendapan.
4.Respon pada penjalaran gelombang seismik bergantung dari densitas batuan dan konstanta elastisitas lainnya. Sehingga, setiap perubahan konstanta tersebut (porositas, permeabilitas, kompaksi, dll) pada prinsipnya dapat diketahui dari metode seismik.
5.Memungkinkan untuk deteksi langsung terhadap keberadaan hidrokarbon

Kelemahan :

1.Banyaknya data yang dikumpulkan dalam sebuah survei akan sangat besar jika diinginkan data yang baik
2.Perolehan data sangat mahal baik akuisisi dan logistik dibandingkan dengan metode geofisika lainnya.
3.Reduksi dan prosesing membutuhkan banyak waktu, membutuhkan komputer mahal dan ahli-ahli yang banyak.
4.Peralatan yang diperlukan dalam akuisisi umumnya lebih mahal dari metode geofisika lainnya.
5.Deteksi langsung terhadap kontaminan, misalnya pembuangan limbah, tidak dapat dilakukan.

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Accumulation of Organic Carbon in Marine Sediments

by Ruediger Stein

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Product Details:
* Paperback: 217 pages
* Publisher: Springer (June 1991)
* Language: English
* ISBN-10: 0387538135
* ISBN-13: 978-0387538136

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Foundations of Engineering Geology (3rd Edition)

By Tony Waltham

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* Publisher: Taylor & Francis
* Number Of Pages: 98
* Publication Date: 2009-04-22
* ISBN-10 / ASIN: 0415469600
* ISBN-13 / EAN: 9780415469609

Product Description

Now in full colour, the third edition of this well established book provides a readable and highly illustrated overview of the aspects of geology that are most significant to civil engineers. Sections in the book include those devoted to the main rock types, weathering, ground investigation, rock mass strength, failures of old mines, subsidence on peats and clays, sinkholes on limestone and chalk, water in landslides, slope stabilization and understanding ground conditions.

The roles of both natural and man-induced processes are assessed, and this understanding is developed into an appreciation of the geological environments potentially hazardous to civil engineering and construction projects. For each style of difficult ground, available techniques of site investigation and remediation are reviewed and evaluated. Each topic is presented as a double page spread with a careful mix of text and diagrams, with tabulated reference material on parameters such as bearing strength of soils and rocks. This new edition of "Foundations of Engineering Geology" has been comprehensively updated and covers the entire spectrum of topics of interest for both students and practitioners in the field of civil engineering.

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Evaporites, Petroleum and Mineral Resources (Developments in Sedimentology)

Buat reader yang ngakunya anak tambang , anak perminyakan, dan anak geologi, silakan download buku yang baru aja di posting ini. Gratis kok, selamat mendownload!!!!! Smoga bermanfaat. Reviewnya ada di bawah!!!!!

==> DOWNLOAD HERE <== 

By J.L. Melvin

* Publisher: Elsevier Science
* Number Of Pages: 556
* Publication Date: 1991-04-01
* ISBN-10 / ASIN: 044488680X
* ISBN-13 / EAN: 9780444886804

Product Description:

This volume illustrates the expanding knowledge of evaporites as important reservoir seals, fluid aquitards, ore-hosting sediments, and economically viable sediments in their own right. Researchers, oil and gas professionals, minerals resource professionals, environmental specialists and others within geology and the other earth sciences shall utilize the information within this book in their understanding of the many recent discoveries and concepts involved in the field of evaporite sedimentology.

Review:

"Evaporites, Petroleum and Mineral Resources" is a good book for information on sedimentologic and petrographic aspects of evaporites, and I recommend it to anyone working with evaporite sediments... "Depositional Environments of Non-Marine Evaporites" are covered by Joseph Smoot and Tim Lowenstein in chapter 3. This is an extensive compilation of material not covered in any of the other books on evaporites and a topic difficult to find in the literature. There are numerous examples of modern and ancient non-marine evaporites and summary tables of occurrences. The extensive reference list compiled for this chapter is also a plus, and a necessity for anyone working on non-marine evaporites. -- R.J. Spencer, Geochimica et Cosmochimica Acta, 1992

... I recommend this book; some chapters are essential reading or reference sources for those interpreting evaporites, and others form useful introductions to their topics. -- A.C. Kendall, Journal of Sedimentary Petrology
... a valuable overview of a relatively new specialization which, with the extensive case studies and the substantial reference lists, together provide a starting point for local research programmes. -- Australian Mineral Foundation Journal; ERISTAT
...a timely book that does the editor and the authors credit and should not be missed by libraries of institutions, ore and oil companies and by some specialist readers. -- Geologie en Mijnbouw, 1993

1992 "Evaporites, Petroleum and Mineral Resources" is a good book for information on sedimentologic and petrographic aspects of evaporites, and I recommend it to anyone working with evaporite sediments... "Depositional Environments of Non-Marine Evaporites" are covered by Joseph Smoot and Tim Lowenstein in chapter 3. This is an extensive compilation of material not covered in any of the other books on evaporites and a topic difficult to find in the literature. There are numerous examples of modern and ancient non-marine evaporites and summary tables of occurrences. The extensive reference list compiled for this chapter is also a plus, and a necessity for anyone working on non-marine evaporites. -- R.J. Spencer, Geochimica et Cosmochimica Acta

1992 I enjoyed reading this excellent, well written, clear and concise text with its emphasis on the depositional and diagenetic setting of evaporites. -- Sedimentary Geology
1993 ...a timely book that does the editor and the authors credit and should not be missed by libraries of institutions, ore and oil companies and by some specialist readers. -- Geologie en Mijnbouw

1993 The volume meets the practical objective of assisting exploration geologists find orebodies. -- Australian Mineral Foundation

I enjoyed reading this excellent, well written, clear and concise text with its emphasis on the depositional and diagenetic setting of evaporites. -- Sedimentary Geology, 1992
The volume meets the practical objective of assisting exploration geologists find orebodies. -- Australian Mineral Foundation, 1993

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