Mine Plan Design: Agustus 2011

ASU's Matt Fouch moves on to Carnegie Institution

Matt Fouch, a nationally renowned professor of seismology in the ASU School of Earth and Space Exploration (SESE) has moved to the Dept. of Terrestrial Magnetism, Carnegie Institution of Washington, in Washington DC, as a Staff Scientist.Matt has been...

Morning jolt

Some folks need their morning joe to get going but if you hang around Lake Mead, it seems like you'd be getting used to a morning jolt.At 7:22 local time, they had a magnitude 2.1 event (in red at right). On Monday morning, it was a 2.3 quake (in yellow...

BLM panel wants northern Arizona lands open to mining claims

"The Bureau of Land Management's Resource Advisory Council voted 9 to 2 to recommend to U.S. Department of Interior that more than 1 million acres of land surrounding the Grand Canyon remain open to mining claims," according to a story in the Kingman...

Florence copper mining sides offer different housing estimates

The debate over a proposed in situ copper project in Florence has turned to conflicting reports on the potential for home building in the area. The SanTan Valley Today paper reports that "Southwest Value Partners, the California-based real estate investment...

BLM Arizona plan includes utility-scale solar option

The Arizona office of BLM released a Draft Resource Management Plan and Environmental Impact Statement for 1.4 million acres in southwest Arizona that includes the potential for utility-scale solar power plants and other land use alternatives on mineral...

Lake Mead quakes continue - M2.1

Arizona experienced another small quake, magnitude 2.1, this morning around 8:30 am local time under Lake Mead along the Nevada border.It's in the same area as other, similar sized quakes have been occurring since this spri...

Preliminary damage report of Trinidad, Colorado M5.3 earthquake

The Colorado Geological Survey posted a preliminary damage report on last week's M5.3 earthquake near the town of Trinidad:At 11:46 PM MDT on August 22, 2011, a Mw 5.3 earthquake was recorded by U.S. Geological Survey seismometers and located the epicenter...

Groundwater in Arizona's alluvial basins

Arizona's alluvial basins have suffered an overall storage loss of 74.5 million acre-feet of water since their development began, according to a study published by the USGS, representing both gains and losses to from the groundwater system."Groundwater...

Likely Earth fissure continues to grow in Cochise County

The possible Earth fissures on Van Ness Rd in Cochise County have grown dramatically since the beginning of the month. AZGS geologist Mike Mahan reports that the west segment extended 183 feet between August 5 and August 19. The east segment extended...

Constraints on copper supplies

Analysts with Macquarie Research make the case that copper supply shortages will lead to higher prices."Since 2004, only around 1.45 million tons [per year] of new supply have been brought online."A decade ago, predictions were for addition of more than...

Post-Schultz fire flood plan depends on Forest Service

Plans to channel potential floodwaters around Flagstaff's Timberline neighborhood all rely on the U.S. Forest Service and our sense is that they may be constrained in taking action. Cyndy Cole's article in the Arizona (Flagstaff) Daily Sun says that...

Arizona Cardinals science cheerleaders

Six of the Arizona Cardinals cheerleaders are pursuing science or engineering careers and took questions online last week about their stereotype-breaking lives. Darlene Cavalier, the original Science Cheerleader, and my colleague at COPUS, organized...

Guidelines for Investigating Land Subsidence and Earth Fissure Hazards in Arizona

AZGS has published a set of guidelines for investigating land subsidence and earth fissure hazards in Arizona, that was compiled by the Arizona Land Subsidence Group. The AzLSG is an informal organization of geologists and engineers from industry, academia,...

Potash and the environment - 5 volume reference set

The interest in potash is growing in Arizona as three companies carry out exploration programs east of Holbrook in what could be one of the largest recoverable deposits in the country. This week the Arizona Oil & Gas Conservation Commission issued...

U.S. reliance on foreign uranium

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Post-fire flooding reports issued for Wallow, Monument, & Horseshoe II fires

The USGS issued three reports on the potential for post-fire floods and debris flows areas burned by the Wallow, Monument, and Horseshoe II wildfires in Arizona.Along with the reports, the USGS announced that "Working with the U.S. Forest Service and...

Jetman flight over the Grand Canyon

After watching this, all the AZGS geologists here want one of these to use for field wo...

Bullish predictions for copper and potash

Scotia Bank analysts say there are supply deficits (ie shortages) of copper and potash worldwide, that are pushing up potash prices substantially, and will exist for copper through 2012.Mineweb.com says that in the August edition of Scotiabank's Commodity...

Gold drops $150 in two days

After briefly topping $1900 an ounce on Monday, gold has dropped steadily for the past two days, closing at $1754 [right]. Silver has taken a proportional price hit as well.But copper, the lifeblood of Arizona's mineral industry, has been hovering pretty...

Legislature's Sunset Review will decide if AZGS continues

The statutory authorization for the Arizona Geological Survey ends June 30, 2012. The Arizona Legislature is beginning a Sunset Review of AZGS to determine if the agency should be continued, revised, consolidated, or terminated at that time. This...

Dog days of summer

It's heading towards a record 108F here in Tucson today. Everyone is looking for a cool shady spot to sit it out until evening. This coyote found a suitable spot under the rosemary and bird of paradise just outside our backdoor at home this morning.The...

Arizona tosses its hat in the earthquake ring with a mighty M2.0

It's hard to get much attention for our puny magnitude 2.0 earthquakes near Lake Mead, when the nation's capitol is still ringing from yesterday's M5.9 event. But we had another one this morning at 10:45 AM local time.No reports of cracks in Hoover...

Animation of Virginia quake waves rolling across the U.S.

The IRIS consortium posted this animation of the wave train from today's 5.9 Virginia earthquake as it rolls across the U.S., recorded by seismographs. The big batch of instruments in the center of the country is the current deployment of stations in...

Virginia and Colorado quakes recorded in Arizona

The Colorado (M5.3) and Virginia (M5.9) earthquakes were both recorded on stations in the Arizona Broadband Seismic Network, run by AZGS.At right, is the record from the Snowflake AZ station, showing the Colorado event just before 6:00 UMT and the Virginia...

Reports on shaking from Virginia quake

My fellow State Geologists in the East are sharing reports from today's magnitude 5.9 earthquake in Virginia, that was felt across much of the Eastern U.S. [right, location map from USGS]The RI State House (structure with very large dome) evacuated...

M5.9 quake rocks East Coast

A magnitude 5.9 earthquake in Virginia was felt up and down the East Coast with preliminary reports of it being felt as far away as Boston. The event was between Richmond and Charlottesville, about 83 miles SW of Washington DC.It occurred at 1:51 pm...

Damage reported from M5.3 quake on Colorado-New Mexico border

A magnitude 5.3 earthquake struck near Trinidad, Colorado last night around 11:30 pm, local time, just north of the New Mexico border. There had been a magnitude 4.6 quake earlier in the day in the same area, and there have been a number of smaller...

Gold rush pushes price above $1900 briefly

Gold surged through the $1900 per ounce level briefly today hitting $1908 before settling back to $1897. Some analysts are predicting prices of $2100 or $2200 this year, with at least one longer term prediction of $5,000. But we are seeing more warnings...

Tiny quake near Nevada border

We're starting off the work week with a magnitude 1.9 earthquake just east of the Arizona-Nevada border near Lake Mead and Boulder City, at 7:29 AM local time today. There have been a number of similar small events in the region in the past weeks and...

Teknik Tenaga Listrik

1. SISTEM TENAGA LISTRIK 1.1. Elemen Sistem TenagaSalah satu cara yang paling ekonomis, mudah dan aman untuk mengirimkan energi adalah melalui bentuk energi...

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