Results 11 to 20 of about 1,473 (216)
Petroleum, 2016 Although commercial gas flow was produced in several wells with recent years' exploration of Longfengshan area in Changling fault sag, the formation mechanism and controlling factors for high-quality reservoirs still remained undefined.
Yongmei Zhang +5 more
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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
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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
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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
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Effects of heat-flow and hydrothermal fluids from volcanic intrusions on authigenic mineralization in sandstone formations [PDF]
Bulletin of the Chemical Society of Ethiopia, 2002 Volcanic intrusions and hydrothermal activity have modified the diagenetic minerals. In the Ulster Basin, UK, most of the authigenic mineralization in the Permo-Triassic sandstones pre-dated tertiary volcanic intrusions.
Wolela Ahmed
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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
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
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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023 Authigenic minerals in Phanerozoic volcanogenic-sedimentary deposits in the northern part of the transition zone from the Asian continent to the Pacific Ocean have been studied.
A.V. Mozherovsky
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Advance in alkaline dissolution of sandstone
地质科技通报, 2022 Alkaline authigenic minerals such as chlorite, laumontite, albite, and illite formed by alkaline dissolution of volcanic materials and feldspar are the focus of sandstone reservoir research, but alkaline dissolution itself is often ignored.
Jianfeng Tian, Jian Yu, Zhiguo Zhang
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