Results 11 to 20 of about 688 (199)
GeofluidsThe Urho Formation in the Lower Permian System at the Junggar Basin in China commonly develops zeolite cements. The presence of zeolite minerals in various states of occurrence and uneven distribution in glutenite reservoirs makes it indeterminate to ...
Jia Jun +4 more
doaj +2 more sources
Portite discredited = natrolite and new data on "schneiderite" (= laumontite)
European Journal of Mineralogy, 1994 The sample of portite studied by D'Achiardi (1873), a fragment of the holotype of Meneghini & Bechi (1852), was rediscovered in some of the oldest collections of the Natural History Museum of Pisa University. X-ray and optical data demonstrate that portite is identical to natrolite, thus allowing us to discredit the mineral name portite.
FRANZINI M, PERCHIAZZI, NATALE
openaire +3 more sources
A neutron powder diffraction study of fully deuterated laumontite
European Journal of Mineralogy, 1993 The crystal structure of fully deuterated laumontite, Ca 4 Al 8 Si 16 O 48 .18D 2 O, has been refined from neutron powder diffraction data using the Rietveld method, λ = 1.468(1) A, T = 295 K, C2/m, Z = 1, M r = 1935.94, a = 14.863(2), b = 13.169(2), c = 7.537(1) A, β = 110.18(1)°, V = 1384.7(6) A 3 , 6.04° ≤ 2θ ≤ 125.00° in 1488 steps, R p = 3.57 ...
K. STAHL, ARTIOLI, GILBERTO
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GeofluidsThe Huizhou–Lufeng Depression in the Pearl River Mouth Basin is a significant hydrocarbon accumulation zone, where tuffaceous materials exert critical control on the quality of Paleogene Wenchang Formation sandstone reservoirs.
Wanlin Li +9 more
doaj +2 more sources
Secondary Minerals from the Drilling Cores of DVDP 3 (Ross Island) and 6 (Lake Vida) [PDF]
Antarctic Record, 1977 The secondary minerals were collected from the drilling cores of DVDP 3 (Ross Island) and DVDP 6 (Lake Vida) and were investigated by the powder X-ray diffraction method. In No.
Hideki MORIKAWA +3 more
doaj +2 more sources
A Comprehensive Study on Enhancing Microbicidal Activity of Pure and Ion-Exchanged Zeolites Through Structural and Chemical Determinants. [PDF]
IET NanobiotechnolZeolites are crystalline aluminosilicate materials known for their unique structures and small pores, making them highly suitable for various applications, including antimicrobial uses. Their porous surfaces enable them to act as carriers for metal ions, enhancing their antibacterial potential.
Tabesh H +4 more
europepmc +2 more sources
Hydrothermal Reaction of Dehydrated Laumontite
Journal of the Mineralogical Society of Japan, 1956 Kiriyama, Ryoiti +3 more
core +3 more sources
Study on Deterioration of Concrete due to Transformation of Laumontite [PDF]
, 2021 Laumontite is a harmful mineral for concrete. Standard specifications for concrete structures described that laumontite and its dehydration material leonhardite would need care because there was volume change between laumontite and leonhardite due to ...
渡邊, 凌, 岩月, 栄治
core +1 more source
On the crystal-fluid interactions in laumontite [PDF]
, 2018 Laumontite, I(Ca4.xNa,)Kx(H20)nl [AlgSiI604SL space group C2/m, is one of the most common naturaI zeolite occurring in a wide range of geologicaI environments, including sedimentary deposits, deep-sea sediments and in sedimentary deposits related to oil ...
G. D. Gatta +4 more
core +2 more sources
High stresses stored in fault zones: example of the Nojima fault (Japan) [PDF]
Solid Earth, 2018 During the last decade pulverized rocks have been described on outcrops along large active faults and attributed to damage related to a propagating seismic rupture front.
A.-M. Boullier +6 more
doaj +1 more source