12 comments on “The Socorro Magma Body – The Next Big Thing?

  1. Thanks Agimarc, what an amazing country, New Mexico! Looking at the map with the red youngest volcanic fields, the “line” is deviating to the west from the Rio Grande, into eastern Utah. E.g. the volcanoes around the Grand Canyon, are those still rifting-related volcanoes? Probably not, too far away.

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    • Howdy Granyia – If I am understanding your question properly, the line of new volcanic activity that crosses the state from SW to NE is the Jemez Lineament. The rift is mostly NS. The crossing point just north of ABQ is Valles Caldera. Utah is off the map to the NE. Arizona is due west.

      Utah’s volcanoes are generally in the SW portion of the state, north of the Grand Canyon. The volcanoes near Grand Canyon are called the Unikaret volcanic field. Lava from its eruptions spilled into the canyon, damming the Colorado River frequently between 750 – 100 ka. Most recent flow out of the field was 1300 years ago – all intraplate basalt eruptions. Cheers –

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      • Oh, sorry, yes, I must have wandered off northwest on Google Earth. In that, my question really made no sense. I meant to follow the line SW, with Red Hill the last volcano on that map. – I see now that it doesn’t continue SW but meets that other “line” coming down from Utah, Markagunt > Uinkaret > Sunset Crater (SFvf). Intraplate volcanism should have a reason, another rift probably?

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        • Oh good. Thought I was more than normally confused.

          Think the Markagunt is more related to the caldera outbreak 22 Ma. Uinkaret and Sunset are a lot more recent. Wondering if it is related to the stretching and thinning of the basin and range province rather than a new rift. We also have the proposed rotation of the Colorado Plateau block. Volcanic activity in NW AZ and SW UT are along the western and southern edges of the block. As to what is making it rotate, your guess is as good as mine. It does seem to describe some of what is going on in NM, though I would expect something in western CO if the suggestion was accurate. And western CO has been pretty quiet following the caldera outbreak of the San Juan volcanic field (I think).

          Enough head scratching and arm waving for now. Thanks for giving me something to cogitate on. Cheers –

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  2. News from Poas volcano in Costa Rica report visitor evacuations due to strong seismic and fumarolic activity over the past weekend. On Thursday touristic guides and park personnel had confirmed the presence of a new fumarole in the crater, also that the main lake had changed color from green to a milky grey. There had been previously a raise in the lake’s temperature, which went from 35⁰C to 40⁰C in just one week.
    Video by Geoffroy Avard from April 7, 2017:

    http://news.co.cr/tourists-evacuated-costa-ricas-poas-volcano/59109/

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  3. New study, an addition to our previous post on magma/rock types: Where does the Na-Carbonatite magma come from? “The more than 500 fossil Ca-carbonatite occurrences on Earth are at odds with the only active East African Rift carbonatite volcano, Oldoinyo Lengai (Tanzania), which produces Na-carbonatite magmas…” PDF: A common origin of carbonatite magmas

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  4. And WOW, drone images from directly inside erupting Fuego crater! Well, actually there isn’t much of a crater left, it’s filled to the brim with a lava dome…

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  5. I spend a few years living in Socorro. It is a beautiful area but it is isolated. Albuquerque, the nearest night life, was 80 minutes away. The volcanic activity around you is quite clear, mainly in the cones along the I40. The risk of a larger earthquake is probably higher than that of an eruption.

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