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Top AIPG eNews Articles of 2018
As 2018 comes to a close, AIPG would like to wish its members, partners and other industry professionals a safe and happy holiday season. As we reflect on the past year for the industry, we would like to provide a look back at the most accessed articles from the year. Look for more of the top articles from 2018 in the Jan. 1 issue. Our regular publication will resume Tuesday, Jan. 8.
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National Geographic
From Oct. 30: On Sept. 7, 2017, a magnitude 8.2 earthquake struck southern Mexico, killing dozens and injuring hundreds. While earthquakes are common enough in the region, this powerful event wasn't any run-of-the-mill tremor. That's because part of the roughly 37-mile-thick tectonic plate responsible for the quake completely split apart, as revealed by a new study in Nature Geoscience. This event took place in a matter of tens of seconds, and it coincided with a gargantuan release of energy.
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Forbes
From July 10: The Thailand cave rescue is underway with eight of the 12 boys (four boys and the coach are still stuck in the cave). As expert divers and Thai Navy SEALS extract the remaining individuals they continue to race against depleting oxygen levels and Thailand's relentless rainy season. Here we take a look at why Thailand's caves are so dangerous, the geology and hydrology of this specific cave and why they remain so unstable. With more than 1,000 experts on site working around the clock, the cave's rock formation provides both a blessing and a curse.
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FLUTe new CHS system allows 4-8 ports in 2 inch casing
8 ports with peristaltic pumping
4 ports with positive displacement pumping.
Time to install 5-15 minutes by anyone
Simultaneous purge sampling for optimum spatial resolution Details
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Volcano Discovery
From May 22: Throughout May 20, Kilauea's eruption continued at a moderate level along the northeast end of the active fissure system at the lower east rift zone. In the early afternoon, HVO reported that there was still active spattering from fissures 6 and 17. At the same time large lava flows continued to be erupted from fissure 20, two of which reached the ocean the previous night. A new development occurred early in the morning of May 20 when a large crack opened up underneath the east lava flow feeding the ocean entry, diverting the lava from the channel into underground voids.
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Eos
From Feb. 6: The Great Unconformity (GU) is one of geology's deepest mysteries. It is a gap of missing time in the geological record between 100 million and 1 billion years long, and it occurs in different rock sections around the world. When and how the GU came to be is still not totally resolved. Now researchers, using a novel method for dating rocks, say it may have been triggered by the uplift of an ancient supercontinent.
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New Scientist
From Oct. 23: The oldest fossils in the world might not be anything of the kind. Instead they may simply be deformed rocks, reopening the question of when life began to leave its mark in the fossil record. However, even if the fossils are not real, other evidence still suggests that life began early in Earth's history.
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Geology
From Aug. 14: A little more than 760 ka ago, a supervolcano on the eastern edge of California underwent one of North America's largest Quaternary explosive eruptions. Over this approximately six-day-long eruption, pyroclastic flows blanketed the surrounding 50 km with more than 1400 km3 of the now-iconic Bishop Tuff, with ashfall reaching as far east as Nebraska. Collapse of the volcano's magma reservoir created the restless Long Valley Caldera. Although no rhyolitic eruptions have occurred in 100 k.y., beginning in 1978, ongoing uplift suggests new magma may have intruded into the reservoir.
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U.S. Geological Survey
From Jan. 30: Days after fatal debris flows devastated Southern California's Montecito community, a team of U.S. Geological Survey geologists joined county, state and federal partners to survey and evaluate the aftermath.
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University of Melbourne via Phys.org
From May 8: The last century has seen rapid advances in our understanding of how the Earth formed, and how the movement of continents through plate tectonics continues to shape our lands, oceans and mountain ranges. But geologists are yet to agree on one important question: what was the Earth like before the plates formed? New research, published in the journal Geology, supports the theory that early Earth was highly volcanically active, and that evidence of the violent transition to plate tectonics can still be seen today.
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Smithsonian
From Nov. 13: Geologists have done pretty well piecing together the history of plate tectonics, or how sections of Earth's crust have pinballed across the globe crashing into one another and pulling apart. But there's one big puzzle piece they still need to figure out: Antarctica. That's because the continent is covered with a layer of ice averaging over a mile thick, meaning studying the bedrock directly is nearly impossible. But recently, a satellite measuring the pull of Earth's gravity was able to penetrate that ice, revealing the tectonic history locked below the frozen continent.
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Nature Geoscience via Phys.org
From Feb. 27: A University of Illinois-led team has identified unexpected geophysical signals underneath tectonically stable interiors of South America and Africa. The data suggest that geologic activity within stable portions of Earth's uppermost layer may have occurred more recently than previously believed. The findings, published in Nature Geoscience, challenge some of today's leading theories regarding plate tectonics.
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