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| Akker, Ismay Vénice, Kaufmann, Josef, Desbois, Guillaume, Klaver, Jop, Urai, Janos L., Berger, Alfons, Herwegh, Marco (2018) Multiscale porosity changes along the pro- and retrograde deformation path: an example from Alpine slates. Solid Earth, 9 (5). 1141-1156 doi:10.5194/se-9-1141-2018 | Journal (article/letter/editorial) | | 52056 Aachen, Germany
Correspondence: Ismay Vénice Akker (ismay.akker@geo.unibe.ch)
Received: 28 May 2018...of the European Geosciences Union.
1142
I. V. Akker et al.: Multiscale porosity changes along the pro-...1969).
www.solid-earth.net/9/1141/2018/
I. V. Akker et al.: Multiscale porosity changes along the pro-...E, which are from an
abandoned sub-surface slate mine (Landesplattenberg). The
N–S sample profile across...a
Solid Earth, 9, 1141–1156, 2018
1144
I. V. Akker et al.: Multiscale porosity changes along the pro- | 👁 Image
| | Journal (article/letter/editorial) | | at Elevated Temperatures
BY A . W . M . VAN DEN AKKER, A. S. KOSTER AND G. D. RIECK
Laboratory of Physical...diffraction angles was carried out
with a sample o f quartz. Cu K~ r a d i a t i o n was used a n d
c a l c...06
+0.05/-0-02
-0-02
-0"01
A. W. M. VAN
DEN
AKKER,
A . S. K O S T E R
AND
T a b l e 3 (cont.)
| 👁 Image
| | Report (article/chapter) | | impact of hazardous waste derived
from abandoned mine sites
G. FERRIER1, B. RUMSBY1 & R. POPE2
1
Department...DE22 1GB, UK
Abstract: The release of hazardous mine waste from abandoned gold mining areas is a major...The complexity of the processes, the scale of the mine sites, problems with accessibility and the lack...coverage. The results of a study of an abandoned gold
mine at Rodalquilar in southern Spain have demonstrated...resolve the distributions of mine waste and secondary iron
species on the mine site and in adjacent rivers | 👁 Image
| Li, Yi, Li, Jin-pu, Jia, Cheng-chang, Liu, Xue-quan (2012) Fabrication of tungsten films by metallorganic chemical vapor deposition. International Journal of Minerals, Metallurgy, and Materials, 19 (12). 1149-1153 doi:10.1007/s12613-012-0684-1 | Journal (article/letter/editorial) | | treatment system. The MOCVD
reactor is made of quartz glass. The copper substrate in the
reactor was...W(CO)6 was loaded in
a evaporator also made of quartz glass, and the sublimation
temperature of W(CO)6...K.J. Kuijlaars, C.R. Kleijn, and H.E.A. van den Akker, Modeling of selective tungsten low-pressure chemical | 👁 Image
| | Journal (article/letter/editorial) | | by a heated prismatic susceptor contained in a quartz
bell cooled externally by air while the heating...
[19] H.V. Santen, C.R. Kleijn, H.E.A. Van Den Akker. in: M.D. Allendorf, C. Bernard (Eds.), Chemical...Kuijlars, M. Okkerse, H. van Santeen, H.E.A. van den Akker, J. Phys. IV France 9
(Pr8) (1999) 123.
[48] S....
[54] H.V. Santen, C.R. Kleijn, A.H.E. van Den Akker. in: M.D. Allendorf, C. Bernard (Eds.), Chemical | 👁 Image
| | Report (article/chapter) | | Muping–Rushan belts. The deposits occur as goldbearing quartz veins and disseminated- and stockwork-style ores...stages: stage I, quartz– (minor) pyrite; stage II,
pyrite–quartz– gold; stage III, quartz– base metal sulphide...sulphide minerals; stage IV, quartz– carbonate.
Ar–Ar ages, Rb–Sr isochrons, and hydrothermal zircon sensitive...Jiaodong
Peninsula.
Geological setting
Regional and mine geology
The Jiaodong gold province occurs along...types of gold deposits in the
Peninsula, namely quartz vein-style (Linglong type)
and fault-zone hosted | 👁 Image
| | Journal (article/letter/editorial) | | Magnetite-rich rocks
Fault, observed, inferred
N 7058
Mine in operation, project
San Juan
E 368
We conducted...1 Km
E 372
orite, tonalite, monzodiorite, to quartz monzodiorite (e.g.,
Berg and Breitkreuz 1983; Lara...accompanied by pervasive K-feldspar
alteration, quartz veining, and pervasive silicification (qtz
I; Fig...mineralization was associated with quartz ± K-feldspar
veining, and sericite±quartz veining (qtz II; Fig. 2)....variable amounts
of K-feldspar, chlorite, sericite, quartz, and/or carbonates.
A marked zonation in the distribution | 👁 Image
| | Journal (article/letter/editorial) | | vaderland.
A c h t e l o o s was het door boeren van de akker
op een
kar geladen
en op de g r o t e hoop geworpen...Preglacial pleistocene in Holland are described. A quartz with cristaline form after Brasilian law found...found near Amersfoort. A radial cristaline quartz from Eibergen and a quartzwacke from Soesterberg. From these | 👁 Image
| | Journal (article/letter/editorial) | | amounts of raw materials were mixed and enclosed in quartz tubes and heated in a Muffle furnace. Both
equipments...R., Kodentsov, A. A., van Beek, J. A., van den Akker, J., and
van Loo, F. J. J. 共1997兲. “Pattern formation | 👁 Image
| | Journal (issue) | | petto] .
significante, 80-0752 ; phyllosilicates i n
quartz veins, 80-0721 ; tectonic rcactrvation, 80-1063...(USA )
21-26
26-28
Beckwiths mine, Isle of Mar. (GB )
29-32
Waterbank Mine, Ecton, Staffordshire (GB )...Best of Britai n
38-40
Randfontein Estates Gold Mine (ZA )
42-76
Nant-y-Cagl (GB )
Mineralogical Record...minerals of the eotin c
Mine (Toscane, I )
37-41
Siegenite from the Buick Mine ,
B1xby . Missouri (USA...donkerbruine plaatjes . Wordt gevonden in de Ster ling Hill Mine, Ogdensburg, New Jersey, U .S .A ., samen met parasymplesiet | 👁 Image
| | Journal (article/letter/editorial) | | muffle furnace
after being sealed in a separated quartz tube with vacuum
degree of 5 105 Pa. Details...R., Kodentsov, A. A., van Beek, J. A., van den Akker, J., and
Van Loo, F. J. J. (1997). “Pattern formation | 👁 Image
| | Journal (article/letter/editorial) | | composition of fluid inclusions in hydrothermal quartz and
calcite related to the hypogene iron oxide-copper-gold...ore-related quartz and post-ore calcite from the hypogene zone
of Mantoverde and selected quartz samples...about
100 km north of Copiapó (Fig. 1). In 2013, the mine produced
around 56,800 tonnes of cathode copper...hypogene sulfides (Rieger et al. 2010).
The Candelaria mine is located about 15 km south of
Copiapó (Fig. 1)...1). It started production in 1993. In 2013, the
mine produced mineral concentrates with around 111,100 | 👁 Image
| | Journal (article/letter/editorial) | | isolated from the Driefontein consolidated gold mine, Witwatersrand basin, Republic of South Africa....conducted using column experiments packed with quartz sand to model the formation of supergene gold deposited...land surface
in the Driefontein consolidated gold mine, Witwatersrand
basin, South Africa (Moser et al...inside the columns. Approximately 24 g of autoclaved quartz
sand (depth of silica ~16 cm; particle size 150–590...with time.
At the completion of experiments, the quartz sand inside
each column was sectioned lengthwise | 👁 Image
| | Journal (article/letter/editorial) | | e±K feldspar±
epidote±quartz in the deep zones and biotite–K feldspar±
quartz in the shallow ones; the...tourmaline breccia pipes. Tropezón is a small Cu–Mo
mine that works a zone of massive Ca–Fe–K alteration...actinolite with accessory magnetite, tourmaline, quartz, and sulfides (mostly pyrite, chalcopyrite, and...molybdenite). The uppermost part grades into an epidote–
quartz–K-feldspar rock with locally abundant anhydrite...assemblage supported and replaced by tourmaline
and quartz. Groundmass minerals include coarse-grained
tourmaline | 👁 Image
| | Report (article/chapter) | | Society, London, Special Publications
Serrated quartz grain boundaries, temperature and
strain rate:...at Rice University on December 3, 2012
Serrated quartz grain boundaries, temperature and strain rate:...(Dr) of quartz grain-boundary sutures and area –
perimeter fractal dimension (Da) of quartz grains, respectively...south. Microstructural
studies reveal that the quartz grain-boundary sutures are less serrated in the...deformation fabrics that formed between 675 and 725 8C (quartz
chessboard pattern thermobarometry). Using a Dr | 👁 Image
| Rojas, Paula A., Barra, Fernando, Reich, Martin, Deditius, Artur, Simon, Adam, Uribe, Francisco, Romero, Rurik, Rojo, Mario (2018) A genetic link between magnetite mineralization and diorite intrusion at the El Romeral iron oxide-apatite deposit, northern Chile. Mineralium Deposita, 53 (7) 947-966 doi:10.1007/s00126-017-0777-x | Journal (article/letter/editorial) | | associated with a dioritic intrusion.
The El Romeral iron mine is located 22 km north of La
Serena, at the southern...more variable composition from diorite to albite, quartz, or K-feldspardominant intrusions. Bookstrom (1975)...additional minor fault systems are recognized in the mine pit, one with a NNW
direction similar to the East...ROM-023
(133.95 m) consist of minor magnetite and quartz in pyrite
veinlets. Samples ROM-019 (87.40 m) and...inclusion-rich magnetite
(magnetite I, Fig. 5b) mainly with quartz (I), oxide (ilmenite,
Miner Deposita
Fig. 5 Photomicrographs | 👁 Image
| Spiridonova, Tatyana S., Solodovnikov, Sergey F., Savina, Aleksandra A., Solodovnikova, Zoya A., Stefanovich, Sergey Yu., Lazoryak, Bogdan I., Korolkov, Iliya V., Khaikina, Elena G. (2017) Synthesis, crystal structures and properties of the new compounds K7–x
Ag1+x
(XO4)4 (X = Mo, W). Acta Crystallographica Section C Structural Chemistry, 73 (12). 1071-1077 doi:10.1107/s2053229617015674 | Journal (article/letter/editorial) | | of the materials was evaluated
relative to an -quartz reference (polycrystalline -SiO2 with
3–5 mm particle...isostructural, in turn, with -K2MoO4 (Van den Akker
et al., 1970).
Thus, the structures of K6.68Ag1...Nos. 16-03-00510 and
17-03-00333).
References
Akker, A. W. M. van den, Koster, A. S. & Rieck, G. D. | 👁 Image
| | Journal (article/letter/editorial) | | goethite and martite. Gangue minerals mainly include quartz, dolomite and K-feldspar are associated with minor...silica-poor and silica-rich ores, or by quartz-magnetite-rich and
barite-quartz-hematite-magnetite ores. In mineralized...processes of the hydrothermal fluids are indicated by quartz and barite veins, or veinlets, that
cut the ore...bi-dimensional detector Histar. Fifteen doubly polished quartz and barite wafers were prepared and
microthermometric...primary fluid
inclusions of the second generation of quartz and the first generation of barite, using a Linkam | 👁 Image
| | Journal (article/letter/editorial) | | sericite–chlorite alteration zones, and calcite and quartz veinlets are ubiquitous in the late stage. Since...isotope (δ18O) values of all types of magnetite, quartz, and epidote
were found to be −5.9 to −2.8‰, 10...and 3.6 to 6.6‰, respectively.
The δ18O values of quartz–magnetite pairs suggest an equilibrium isotopic...Middle
to Upper Cambrian intrusive bodies of mixed quartz diorite,
biotite diorite, and granodiorite have...olive green appearance, and is
often replaced by quartz–calcite and/or chlorite veinlets
(Figure 4, CHU-131 | 👁 Image
| Salazar, Eduardo, Barra, Fernando, Reich, Martin, Simon, Adam, Leisen, Mathieu, Palma, Gisella, Romero, Rurik, Rojo, Mario (2020) Trace element geochemistry of magnetite from the Cerro Negro Norte iron oxide−apatite deposit, northern Chile. Mineralium Deposita, 55 (3) 409-428 doi:10.1007/s00126-019-00879-3 | Journal (article/letter/editorial) | | actinolite; calcic–sodic alteration + sulfides; quartz–tourmaline and propylitic
alteration) and a minor...general NNE orientation and intrude the diorite and quartz–diorite stocks, as well
as the andesite and magnetite...In addition, magnetite clasts were observed in
quartz–diorite igneous breccias that are spatially associated...outward to an actinolite–albite ±
quartz zone. To the east, a tourmaline–quartz zone is dominant
and in which...is almost completely altered to tourmaline with quartz, minor sericite, and chlorite.
The contact between | 👁 Image
| | Journal (article/letter/editorial) | | sulfide mineralization
CE
P
(stage III), and late quartz-calcite veining (stage IV). The temporal association... represented
2
ACCEPTED MANUSCRIPT
by barren quartz-calcite-tourmaline veins in intensely-altered wall...whereas the felsic end-members,
termed albitized quartz porphyries, occur locally within the lower part...remobilization, as
shown by dilatational, unfoliated quartz-sulfide veins (Fig. 3D).
TE
D
The ore zones...apatite, actinolite, siderite, tourmaline, and quartz (Figs.
3A-B); (2) disseminated or banded Cu-Fe | 👁 Image
| | Journal (article/letter/editorial) | | minerals and pla
gioclase, whereas granites are quartzfeldspathic cotec
tics. Approaches utilized to...Kokpektin
skii wehrlite–troctolite–gabbro and Akker
manovsko–Kiripichninskii wehrlite–gabbro–pla
giogranite...(trondhjemites),
whereas the latter usually correspond to the quartz–
plagioclase–potassic feldspar cotectic. At the | 👁 Image
| | Journal (article/letter/editorial) | | dominantly gray in color and is composed of feldspar, quartz,
and lithic clasts of andesite. Sandstone is yellow...mined over a strike length of
800 m (San Enrique mine). In the central portion of the
district, the sedimentary...fine-grained recrystallized
quartz with lesser magnetite and epidote adjacent to a quartz
monzonite intrusion...diorite. A medium- to coarse-grained,
equigranular quartz-dioritic to tonalitic intrusion is exposed
at higher...gabbro diorite, an equigranular medium-grained quartz monzonite, and a monzodiorite occur in topographically | 👁 Image
| Wang, Miao; Chen, Yong; Bain, Wyatt M.; Meng, Fanchao; Zhou, Zhenzhu; Zhang, Hui; Zhang, Shangkun; Steele-MacInnis, Matthew (2021) Fluid evolution of a hematite-dominated, magmatic-hydrothermal Cu-Au deposit at Qibaoshan, Shandong Province, China. Ore Geology Reviews, 131. doi:10.1016/j.oregeorev.2021.104052 | Journal (article/letter/editorial) | | invariably of chlorite, coarse specular hematite,
quartz and carbonates with subordinate pyrite and chalcopyrite...the deposition of
specular hematite + euhedral quartz; then the deposition of (2nd) chalcopyrite + pyrite;...◦ C) fluid during the precipitation of euhedral quartz. The initial,
high temperature stage showed features...interpretations were based in part on
analyses of quartz-hosted fluid inclusions within mineralized veins...only on inclusions within transparent
minerals (quartz and calcite), based on the assumption that these | 👁 Image
| Dymaczewski, Zbysław, Falkowska, Joanna, Frąckowiak, Angelika, Jeż-Walkowiak, Joanna, Nawrot, Justyna, Dudek, Lidia, Topór, Tomasz (2020) The Impact of Microstructure of Filtration Materials on Its Auto-Activation for Manganese Removal from Groundwater. Minerals, 10 (6) 502 doi:10.3390/min10060502 | Journal (article/letter/editorial) | | manganese and ammonia nitrogen removal on mature quartz sand filtering beds. Water Sci. Technol. 2001,...Dusseldorp, J.; Bruins, J.H.; de Vet, W.; van den Akker, B. Iron and manganese removal: Recent advances |
|
