Geochemistry of waste rock at dumping area

Candra Nugraha, Hideki Shimada, Takashi Sasaoka, Masatomo Ichinose, Kikuo Matsui, Imanuel Manege

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that the oxidation uniformly occurred at the surface layer of 2- and 10-year-old waste rock dumps. The changes of mineralogical composition were also investigated, particularly for the cases where significant formation of clay minerals occurred. The study showed that the formation of clay minerals after the weathering processes took place at the dumping area, suggested that the generation of AMD would be minimised because the interior of the waste rock dump provided a barrier to oxygen and water.

Original languageEnglish
Pages (from-to)132-143
Number of pages12
JournalInternational Journal of Mining, Reclamation and Environment
Volume23
Issue number2
DOIs
Publication statusPublished - Aug 13 2009

Fingerprint

Geochemistry
Bearings (structural)
geochemistry
Rocks
acid mine drainage
sulfide
Weathering
Clay minerals
rock
Drainage
clay mineral
weathering
oxidation
Interiors (building)
Oxidation
Acids
surface layer
surface area
oxygen
Oxygen

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geology
  • Earth-Surface Processes
  • Management of Technology and Innovation

Cite this

Geochemistry of waste rock at dumping area. / Nugraha, Candra; Shimada, Hideki; Sasaoka, Takashi; Ichinose, Masatomo; Matsui, Kikuo; Manege, Imanuel.

In: International Journal of Mining, Reclamation and Environment, Vol. 23, No. 2, 13.08.2009, p. 132-143.

Research output: Contribution to journalArticle

Nugraha, Candra ; Shimada, Hideki ; Sasaoka, Takashi ; Ichinose, Masatomo ; Matsui, Kikuo ; Manege, Imanuel. / Geochemistry of waste rock at dumping area. In: International Journal of Mining, Reclamation and Environment. 2009 ; Vol. 23, No. 2. pp. 132-143.
@article{5e2f098e2afa4899b555cbec5032d268,
title = "Geochemistry of waste rock at dumping area",
abstract = "Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that the oxidation uniformly occurred at the surface layer of 2- and 10-year-old waste rock dumps. The changes of mineralogical composition were also investigated, particularly for the cases where significant formation of clay minerals occurred. The study showed that the formation of clay minerals after the weathering processes took place at the dumping area, suggested that the generation of AMD would be minimised because the interior of the waste rock dump provided a barrier to oxygen and water.",
author = "Candra Nugraha and Hideki Shimada and Takashi Sasaoka and Masatomo Ichinose and Kikuo Matsui and Imanuel Manege",
year = "2009",
month = "8",
day = "13",
doi = "10.1080/17480930802439845",
language = "English",
volume = "23",
pages = "132--143",
journal = "International Journal of Mining, Reclamation and Environment",
issn = "1748-0930",
publisher = "Taylor and Francis Ltd.",
number = "2",

}

TY - JOUR

T1 - Geochemistry of waste rock at dumping area

AU - Nugraha, Candra

AU - Shimada, Hideki

AU - Sasaoka, Takashi

AU - Ichinose, Masatomo

AU - Matsui, Kikuo

AU - Manege, Imanuel

PY - 2009/8/13

Y1 - 2009/8/13

N2 - Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that the oxidation uniformly occurred at the surface layer of 2- and 10-year-old waste rock dumps. The changes of mineralogical composition were also investigated, particularly for the cases where significant formation of clay minerals occurred. The study showed that the formation of clay minerals after the weathering processes took place at the dumping area, suggested that the generation of AMD would be minimised because the interior of the waste rock dump provided a barrier to oxygen and water.

AB - Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that the oxidation uniformly occurred at the surface layer of 2- and 10-year-old waste rock dumps. The changes of mineralogical composition were also investigated, particularly for the cases where significant formation of clay minerals occurred. The study showed that the formation of clay minerals after the weathering processes took place at the dumping area, suggested that the generation of AMD would be minimised because the interior of the waste rock dump provided a barrier to oxygen and water.

UR - http://www.scopus.com/inward/record.url?scp=68349087961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68349087961&partnerID=8YFLogxK

U2 - 10.1080/17480930802439845

DO - 10.1080/17480930802439845

M3 - Article

AN - SCOPUS:68349087961

VL - 23

SP - 132

EP - 143

JO - International Journal of Mining, Reclamation and Environment

JF - International Journal of Mining, Reclamation and Environment

SN - 1748-0930

IS - 2

ER -