Results 61 to 70 of about 1,473 (216)

One Billion Years of Stability in the North American Midcontinent Following Two‐Stage Grenvillian Structural Inversion

Tectonics, Volume 43, Issue 9, September 2024.
Abstract The North American craton interior preserves a >1 Ga history of near surface processes that inform ongoing debates regarding timing and drivers of continental‐scale deformation and erosion associated with far‐field orogenesis. We tested various models of structural inversion on a major segment of the Midcontinent Rift along the Douglas Fault ...
Eben B. Hodgin, Nicholas L. Swanson‐Hysell, Andrew R. C. Kylander‐Clark, Andrew C. Turner, Daniel A. Stolper, Daniel E. Ibarra, Mark D. Schmitz, Yiming Zhang, Luke M. Fairchild, Anthony J. Fuentes   +9 more
wiley   +1 more source

Prospects of Zeolites Exploration in Abzelilovskiy District of the Bashkortostan Republic [PDF]

, 2017
Рассмотрены перспективы выявления цеолитов в Абзелиловском районе РБ.Представлены вещественный состав и технологическая характеристика ломонтитсодержащих пород Балапанского проявления.
Shafikov, R. D., Fatkullin, E. A.
core   +1 more source

Frictional Properties of Feldspar‐Chlorite Gouges and Implications for Fault Reactivation in Hydrothermal Systems

Earth and Space Science, Volume 11, Issue 7, July 2024.
Abstract As a particularly common mineral in granites, the presence of feldspar and feldspar‐chlorite gouges at hydrothermal conditions has important implications in fault strength and reactivation. We present laboratory observations of frictional strength and stability of feldspar (K‐feldspar and albite) and feldspar‐chlorite gouges under conditions ...
Zijuan Hu, Chongyuan Zhang, Lei Zhang, Derek Elsworth, Fengshou Zhang, Quan Gan, Huiru Lei, Manchao He, Leihua Yao   +8 more
wiley   +1 more source

(Table 1) Secondary minerals from DSDP Hole 83-504B stockwork-like zone

, 1985
# indicates - typical of laumontite from Leg 83 basalts (Alt et al., 1985; doi:10.2973/dsdp.proc.83.108 ...
Alt, Jeffrey C, Honnorez-Guerstein, B-M, J Ruiz (6961043), Ruiz, J, Jeffrey C Alt (6958445), Jose J Honnorez (6886856), Muehlenbachs, Karlis, Eric S Saltzman (6961046), Laverne, Christine, Saltzman, Eric S, B-M Honnorez-Guerstein (6959495), Karlis Muehlenbachs (306967), Honnorez, Jose J, Christine Laverne (6960917)   +13 more
core   +1 more source

The Geochemical and Mineralogical Signature of Glaciovolcanism Near Þórisjökull, Iceland, and Its Implications for Glaciovolcanism on Mars

Journal of Geophysical Research: Planets, Volume 129, Issue 7, July 2024.
Abstract Candidate glaciovolcanic landforms have been identified across Mars, suggesting that volcano‐ice interactions may have been relatively widespread in areas that once contained extensive surface and near‐surface ice deposits. To better constrain the detection of glaciovolcanism in Mars' geological record, this study has investigated and ...
Candice C. Bedford, Elizabeth B. Rampe, Michael T. Thorpe, Ryan C. Ewing, Kashauna Mason, Briony Horgan, Amanda Rudolph, Mathieu G. A. Lapôtre, Prakhar Sinha, Marion Nachon, Emily Champion, Lauren Berger, Ewan Reid, Patrick C. Gray   +13 more
wiley   +1 more source

A Quantitative Provenance Analysis (QPA) Approach to Quantify Controls on Sediment Generation and Sediment Flux in the Upper Reaches of the Magdalena River (Colombia): 2. Lithological Control on Contribution to Silt‐ to Clay‐Sized Fractions

Journal of Geophysical Research: Earth Surface, Volume 129, Issue 5, May 2024.
Abstract The composition of 27 fluvial silt and clay sediments was used in this study to identify and quantify the processes in the upper valley of the Magdalena river in South Colombia. The combination of seismic activity, intense precipitation, and landsliding resulted in limited chemical weathering and a very efficient transfer of weathered products
S. Liedel, L. Caracciolo, A. Beltrán‐Triviño, J. C. Restrepo, J. D. Restrepo Ángel, M. Szczerba   +5 more
wiley   +1 more source

New insights on the hydration of the zeolite laumontite: a natural nano-sponge

, 2017
Laumontite, |(Ca4-xNax)Kx(H2O)n|[Al8Si16O48], space group C2/m, is one of the most common natural zeolite occurring in a wide range of geological environments, including sedimentary deposits and deep-sea sediments.
G. D. Gatta, M. Merlini, M. Hanfland, D. Comboni, P. Lotti   +4 more
core  

Indikasi mineralisasi epitermal emas bersulfi da rendah, di Wilayah Kecamatan Bonjol, Kabupaten Pasaman, Sumatera Barat

Indonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol2no1.20075Bonjol gold prospect, known as Old Dutch Gold mine, consists of several ore bodies (Malintang, Balimbing, Lubang Sempit, Lubang Belanda and Lubang Perak).
Hamdan Z. Abidin, Bhakti H. Harahap
doaj   +1 more source

A note on the frictional strength of laumontite from Cajon Pass, California

Geophysical Research Letters, 1991
Laumontite mineralization is pervasive in joints and shear zones encountered in the Cajon Pass drillhole in southern California. In order to determine whether a gouge composed of this hydrated mineral affects shear strength in a manner similar to low‐strength, day‐rich fault gouges, frictional sliding experiments were performed under dry, saturated and
C. A. Morrow, J. D. Byerlee
openaire   +1 more source

The role of temperature in P-induced crystal fluid interaction: the case of LAU and HEU topology [PDF]

, 2022
Zeolites are a class of open-framework aluminosilicate minerals commonly present in soil, oceanic basalts and sediments and diagenetic environments. Zeolites may act as fluid carriers in the upper Earth crust during the early subduction stage thanks to ...
G. D. Gatta, F. Pagliaro, T. Battiston, D. Comboni, P. Lotti   +4 more
core