Helicopter equipped with magnetometer maps underground regions of magnetic minerals

Geological survey expands in western B.C.

Helicopter magnetic survey locates minerals, natural gas and water at different depths in the Earth crust

The latest geophysical survey of B.C. will map the largest area so far, creating a three-dimensional image indicating mineral and water resources far underground.

Geoscience BC has received $5 million from the provincial government for the Search II project, to complete an aerial magnetic survey of a 24,000 hectares between Fort Fraser and Smithers, north of Tweedsmuir Provincial Park.

After 10 years and 135 projects, the non-profit Geoscience BC has produced new earth science data for about half of the province’s area. The aerial surveys use a magnetometer to record local disturbances in the Earth’s magnetic field caused by magnetic minerals in the upper regions of the crust.

Last year’s helicopter survey of the Chilcotin Plateau included collecting samples from the tops of spruce trees. The cuttings are analyzed for mineral content, providing information in areas with no roads and few lakes for float plane access by prospectors.

[Video of tree sampling below]

Magnetic surveys of northeast B.C. have located saline aquifers as well as gas pools in deep shale formations. They also detect shallower fresh-water aquifers.

Carlos Salas, Geoscience BC vice-president for energy, said the northeast survey covered Treaty 8 First Nations territories at their request, mapping water and mineral zones.

“Over the Doig River First Nation community we found what looks like a really good aquifer they will be able to use as a source for their community,” Salas said.

Dallas Smith, president of the Nanwakolas Council representing Central Coast First Nations, is a director of Geoscience BC. He said understanding the locations of groundwater and mineral deposits helps in making development decisions.

“We understand the depths of some of these things,” Smith said. “It makes it a lot easier to keep that in reality and not start doing what seems to happen in First Nations territories, when we kind of romanticize these issues a little bit.”

The latest aerial survey area contains the former Bell-Granisle copper-gold mines and the idled Endako molybdenum mine. It will map the area north of the Huckleberry copper mine and the proposed Blackwater gold mine southwest of Prince George.

Just Posted

United Way campaign lacking funds

Organization not even at 50 per cent mark of fundraising goal

Holiday Train rolls through the Shuswap

Hundreds of people have gathered in Sicamous, Canoe and Salmon Arm for… Continue reading

Charges in car wash shooting stalled

Court waits for police watchdog report on Salmon Arm incident.

Bear spray used in tenant dispute

Salmon Arm RCMP responding to Tappen home invasion find occupants sprayed in repllent

Vehicles damaged, no serious injuries

Police respond to collision at TCH and McLeod Street

VIDEO: Average Canadian food bill to rise by $348 in 2018

Atlantic Canada and B.C. will see the most increases for consumers

B.C. government to launch coastal ferry review in January

The Province will begin a comprehensive review of the coastal ferry service in British Columbia in 2018

Federal Crown drops appeal after charges against pot activist dismissed

Dana Larsen said he was served notice at his home in Vancouver and the case was to be heard July 2

Prince Harry and Meghan Markle to marry May 19

Kensington Palace announced the date to the public Friday

#MeToo at work: How reporting sexual harassment works – and how it doesn’t

British Columbians have four options to report harassment or assault, but none of them are easy

Debt-to-household-income ratio rises in third quarter

Total household credit market debt grew to $2.11 trillion in the third quarter

PART I: How Prince Rupert schools teach Indigenous language to hundreds of students

A multimedia series with videos and photos from children’s Sm’algyax classes on B.C.’s North Coast

B.C. Mountie told to resign after texting teenage sex assault victim

RCMP documents say Const. Brian Eden sent sexually inappropriate photos to 17-year-old girl

B.C. Interior First Nation create a community radio station

The Tsilhqot’in National Government is developing a radio station to promote language revitalization and create unity

Most Read