American Mineralogist
Open AccessLETTERS
231
In-situ crystal structure determination of seifertite SiO2 at 129 GPa: Studying a minor phase near Earth’s core-mantle boundary
Li Zhang, Dmitry Popov, Yue Meng, Junyue Wang, Cheng Ji, Bing Li, and Ho-kwang Mao
HIGHLIGHTS AND BREAKTHROUGHS
1
A spin on lower mantle mineralogy
Jeffrey S. Pigott
3
Safe long-term immobilization of heavy metals: Looking at natural rocks
Maarten A.T.M. Broekmans
5
Spinel in planetary systems
Stephen E. Haggerty
INVITED CENTENNIAL ARTICLE
7
Pathways for nitrogen cycling in Earth’s crust and upper mantle: A review and new results for microporous beryl and cordierite
Gray E. Bebout, Kris E. Lazzeri, and Charles A. Geiger
25
Metamorphic chronology comes of age: Past achievements and future prospects
Matthew J. Kohn
REVIEW
43
K-bentonites: A review
Warren D. Huff
CHEMISTRY AND MINERALOGY OF EARTH'S MANTLE
71
Ca-Al-silicate inclusions in natural moissanite (SiC)
Simonpietro Di Pierro and Edwin Gnos
SPECIAL COLLECTION: ADVANCES IN ULTRAHIGH-PRESSURE METAMORPHISM
82
Immiscible melt droplets in garnet, as represented by ilmenite–magnetite–spinel spheroids in an eclogite-garnet peridotite association, Blansk. les Granulite Massif, Czech Republic
Stanislav Vrána, Lukáš Ackerman, Vojtěch Erban, and Patricie Halodová
93
Tetrahedral boron in natural and synthetic HP/UHP tourmaline: Evidence from Raman spectroscopy, EMPA, and single-crystal XRD
Martin Kutzschbach, Bernd Wunder, Dieter Rhede, Monika Koch-Müller, Andreas Ertl, Gerald Giester, Wilhelm Heinrich, and Gerhard Franz
REGULAR ARTICLE
105
Radiation damage haloes in biotite investigated using high-resolution transmission electron microscopy
William R. Bower, Richard A.D. Pattrick, Carolyn I. Pearce, Giles T.R. Droop, and Sarah J. Haigh
111
A spreadsheet for calculating normative mole fractions of end-member species for Na-Ca-Li-Fe2+-Mg-Al tourmalines from electron microprobe data
George B. Morgan VI
120
Preservation of organic matter in nontronite against iron redox cycling
Qiang Zeng, Hailiang Dong, Linduo Zhao, and Qiuyuan Huang
134
Influence of organic matter on smectite illitization: A comparison between red and dark mudstones from the Dongying Depression, China
Yingli Li, Jingong Cai, Mingshui Song, Junfeng Ji, and Yujin Bao
146
Intermediate members of the lime-monteponite solid solutions (Ca1–xCdxO, x = 0.36-0.55): Discovery in natural occurrence
Hani N. Khoury, Ella V. Sokol, Svetlana N. Kokh, Yurii V. Seryotkin, Olga A. Kozmenko, Sergey V. Goryainov, and Ian D. Clark
162
Ab initio investigation of majorite and pyrope garnets: Lattice dynamics and vibrational spectra
Marco De La Pierre and Donato Belmonte
175
FTIR spectroscopy of D2O and HDO molecules in the c-axis channels of synthetic beryl
Rudolf I. Mashkovtsev, Viktor G. Thomas, Dmitry A. Fursenko, Elena S. Zhukova,Vladimir V. Uskov, and Boris P. Gorshunov
181
Experimental constraints on mantle sulfide melting up to 8 GPa
Zhou Zhang and Marc M. Hirschmann
193
Excess mixing volume, microstrain, and stability of pyrope-grossular garnets
Wei Du, Simon Martin Clark, and David Walker
205
Phase stabilities and spin transitions of Fe3(S1–xPx) at high pressure and its implications in meteorites
Tingting Gu, Yingwei Fei, Xiang Wu, and Shan Qin
BUILDING PLANETS: THE DYNAMICS AND GEOCHEMISTRY OF CORE FORMATION
211
The W-WO2 oxygen fugacity buffer (WWO) at high pressure and temperature: Implications for fO2 buffering and metal-silicate partitioning
Gregory A. Shofner, Andrew J. Campbell, Lisa R. Danielson, Kevin Righter, Rebecca A. Fischer, Yanbin Wang, and Vitali Prakapenka
SPECIAL COLLECTION: RATES AND DEPTHS OF MAGMA ASCENT ON EARTH
222
Timescales of magma storage and migration recorded by olivine crystals in basalts of the March-April 2010 eruption at Eyjafjallajökull volcano, Iceland
Marco Viccaro, Marisa Giuffrida, Eugenio Nicotra, and Renato Cristofolini
NEW MINERALS
235
New Mineral Names
BOOK REVIEW
238
Book Review
John Schumacher
DEPOSIT ITEMS
7
Pathways for nitrogen cycling in Earth’s crust and upper mantle: A review and new results for microporous beryl and cordierite
Gray E. Bebout, Kris E. Lazzeri, and Charles A. Geiger
82
Immiscible melt droplets in garnet, as represented by ilmenite–magnetite–spinel spheroids in an eclogite-garnet peridotite association, Blansk. les Granulite Massif, Czech Republic
Stanislav Vrána, Lukáš Ackerman, Vojtěch Erban, and Patricie Halodová
93
Tetrahedral boron in natural and synthetic HP/UHP tourmaline: Evidence from Raman spectroscopy, EMPA, and single-crystal XRD
Martin Kutzschbach, Bernd Wunder, Dieter Rhede, Monika Koch-Müller, Andreas Ertl, Gerald Giester, Wilhelm Heinrich, and Gerhard Franz
111
A spreadsheet for calculating normative mole fractions of end-member species for Na-Ca-Li-Fe2+-Mg-Al tourmalines from electron microprobe data
George B. Morgan VI
120
Preservation of organic matter in nontronite against iron redox cycling
Qiang Zeng, Hailiang Dong, Linduo Zhao, and Qiuyuan Huang
162
Ab initio investigation of majorite and pyrope garnets: Lattice dynamics and vibrational spectra
Marco De La Pierre and Donato Belmonte
175
FTIR spectroscopy of D2O and HDO molecules in the c-axis channels of synthetic beryl
Rudolf I. Mashkovtsev, Viktor G. Thomas, Dmitry A. Fursenko, Elena S. Zhukova,Vladimir V. Uskov, and Boris P. Gorshunov
205
Phase stabilities and spin transitions of Fe3(S1–xPx) at high pressure and its implications in meteorites
Tingting Gu, Yingwei Fei, Xiang Wu, and Shan Qin
211
The W-WO2 oxygen fugacity buffer (WWO) at high pressure and temperature: Implications for fO2 buffering and metal-silicate partitioning
Gregory A. Shofner, Andrew J. Campbell, Lisa R. Danielson, Kevin Righter, Rebecca A. Fischer, Yanbin Wang, and Vitali Prakapenka
222
Timescales of magma storage and migration recorded by olivine crystals in basalts of the March-April 2010 eruption at Eyjafjallajökull volcano, Iceland
Marco Viccaro, Marisa Giuffrida, Eugenio Nicotra, and Renato Cristofolini
TABLE OF CONTENTS
&
SPECIAL COLLECTIONS
Table of Contents
AmMin submission to acceptance/”first publication” is at a record average of about three to four months. Our acceptance to “final” publication is presently another 13 months on average.
Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.