Results 111 to 120 of about 49,779 (247)

Near-Infrared Spectroscopic Study of Biotite–Phlogopite (Mg# = 30~99): OH-Stretching Modes and Mg# Content Prediction Equation

Crystals
Biotite–phlogopite minerals are a complete Mg–Fe isomorphism series of phyllosilicates. A Fourier transform infrared spectroscopy (FTIR) and electron microprobe analysis (EMPA) were conducted on end-member phlogopite, Mg–biotite, and annite samples.
Zhentao Yang, Mingyue He, Shaokun Wu, Mei Yang, Bijie Peng   +4 more
doaj   +1 more source

The Effects of Germanium Biotite Supplement as a Prophylactic Agent against Respiratory Infection in Calves [PDF]

Pakistan Veterinary Journal, 2012
Germanium biotite, a natural mineral, is comprised of mainly silicate. This mineral showed activities of increase in feed efficiency and non-specific immunostimulation in previous studies.
Myunghwan Jung1, Bock-Gie Jung2, Seung Bin Cha1, Min-Kyoung Shin1, Won-Jung Lee1, Seung Won Shin1, Jin-A Lee2, Yeon-Kwon Jung3, Bong-Joo Lee2 and Han Sang Yoo1*
doaj  

Connecting with tephras: principles, functioning, and applications of tephrochronology in Quaternary science [PDF]

, 2013
Tephrochronology is a unique method for linking and dating geological, palaeoecological, palaeoclimatic, or archaeological sequences or events. The method relies firstly on stratigraphy and the law of superposition, which apply in any study that connects
Lowe, David J.
core   +1 more source

Location, Location, Location: Monazite Behaviour During UHT Metamorphism and Melt Crystallization

Journal of Metamorphic Geology, Volume 44, Issue 2, Page 158-175, February 2026.
ABSTRACT Monazite is a robust mineral for recording the suprasolidus evolution of migmatites and granulites. However, monazite commonly has diverse compositions and yields variable dates in a single sample; understanding the controls on monazite behaviour and composition during partial melting and melt crystallization are not always straightforward ...
Chris Yakymchuk, Jessica Gareau, Michael Williams   +2 more
wiley   +1 more source

Potential of Soils Natural Sorbents for Environmental Decontamination From 137Cs

Land Degradation &Development, Volume 37, Issue 2, Page 779-789, 30 January 2026.
ABSTRACT This study addresses the existing research gap concerning the lack of integrated data on the role of in situ soil components in the long‐term fixation of 137Cs under natural, protected, and non‐agricultural conditions. The contamination of ecosystems by radioactive isotopes, particularly 137Cs, represents a considerable environmental hazard ...
Katarzyna Szarłowicz, Filip Jędrzejek, Marcin Stobiński, Michał Skiba   +3 more
wiley   +1 more source

An ashy septingentenarian: the Kaharoa tephra turns 700 (with notes on its volcanological, archaeological, and historical importance) [PDF]

, 2014
Most of us are aware of the basaltic Tarawera eruption on 10th June 1886: the high toll on life (~120 people), landscape devastation, and loss of the Pink and White Terraces.
Lowe, David J., Pittari, Adrian
core   +1 more source

An archean suture zone in the Tobacco Root Mountains? (1984) Evolution of Archean Continental Crust, SW Montana (1985) [PDF]

The Lake Plateau area of the Beartooth Mountains, Montana were mapped and geochemically sampled. The allochthonous nature of the Stillwater Complex was interpreted as a Cordilleran-style continental margin.
Kain, L., Mogk, D. W.
core   +1 more source

Dynamic multifractal characteristics and damage evolution of granite pegmatite with varying biotite content based on acoustic emission monitoring

International Journal of Mining Science and Technology
Biotite content critically influences rock mechanical behavior and threatens underground engineering stability. Uniaxial compression tests with acoustic emission (AE) monitoring were conducted on granite pegmatite samples having varying biotite content ...
Shuowei Liu, Jianjun Zhao, Bin Shi, Qiyi Lai, Qingmiao Li, Jianxian He, Xiao Zhao, Jie Deng, Xuejin Ying   +8 more
doaj   +1 more source

Evaluation of anti-microbial activity of biotite and biotite composite based on crystallographic parameters: Estimation of crystallite size employing X-ray diffraction data

Results in Engineering
This study dealt with naturally occurring biotite from the river sediment to synthesize biotite based composite to evaluate antimicrobial activities against gram positive bacteria, negative bacteria and fungi.
Aynun Nahar, Md. Sahadat Hossain, Md. Ahedul Akbor, Subarna Sandhani Dey, Md. Ashraful Alam, Sharmin Ahmed Trisha, Tania Afrose Sheoly, Nigar Sultana Pinky, Farhana Afrose Sonia   +8 more
doaj   +1 more source

Biotite as a petrogenetic discriminator in the polymetamorphosed rocks: A case study from the Champaner supracrustal rocks, Western India

Geosystems and Geoenvironment
The mineral chemistry of Fe-Mg biotite has served as an aid to the petrogenesis of igneous rocks, especially for identifying the parent magma compositions. Though the interpretation of igneous and metamorphic processes utilizing biotite mineral chemistry
Parita K. Gorania, Gayatri N. Akolkar, Aditya U. Joshi, Manoj A. Limaye, Mahendra K. Singh   +4 more
doaj   +1 more source