Since 1955, the Sakurajima volcano has experienced repeated Vulcanian eruptions accompanied by intense air-shocks, large ash clouds, and deflation ground deformations. However, ground deflations sometimes occurred even if no eruption took place. In this study, we categorize deflation events contained in continuous deformation records covering eruptive activities at the Sakurajima volcano Minamidake crater during the period from November 2017 to December 2020. The deflation events are classified into eruptive deflation and non-eruptive deflation (NED) types by examining the seismic data, infrasound generations, and visual phenomena. Their event type occurrence characteristics are then further clarified based on their relationships to pressure source volume changes. Comparing the pressure source volume changes with the monthly mass of volcanic ash expelled from the crater, which is estimated from deposition data around the volcano, we found the contribution of NED events to volcanic ash
Black Jack Tunnel, Black Jack Mine, Mammoth, Tintic Mining District, Juab County, Utah, USA : Structure: Northeast Fissures Deposit: Strong fissures, followed S, SW for 700 feet on 1400 level failed to yield substantial ore. Discovery year: 1880 s Development: Boston tintic incline nearby .
Farncomb Hill, French Gulch, Breckenridge Mining District, Summit County, Colorado, USA : Native gold occurs in the Breckenridge district both in veins and placers. The principal locality for vein gold is Farncomb Hill, whence have come the innumerable specimens of Breckenridge gold .
An algorithm used to turn the curved surface of the Earth (or another planet) into two-dimensional Cartesian coordinates for representation on a map. It.
Graphite One Inc.: U.S. Government Designates Graphite One Project as High-Priority Infrastructure Project
VANCOUVER, BC / ACCESSWIRE /
(TSX-V:GPH)(OTCQB:GPHOF) ( Graphite One or the Company ) announced today that on January 15, 2021 it received notice that the Company s Graphite Creek Project has been designated a High-Priority Infrastructure Project (HPIP) by the U.S. Government s Federal Permitting Improvement Steering Committee (FPISC). The approval is the culmination of a process that began with the nomination on October 4, 2019 by Alaska Governor Mike Dunleavy of Graphite One s project for High-Priority Infrastructure Project designation.[1] Designating the Graphite Creek Project as a High-Priority Infrastructure Project will send a strong signal that the U.S. intends to end the days of our 100% import-dependency for this increasingly critical mineral, said Alaska Governor Mike Dunleavy in his nomination letter.