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Lava Falls Trail Stop #5
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New Mexico
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Lava Falls Trail Stop #5
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<h2>Hot Gases Rise</h2> <p>Although you are slightly downhill from McCartys Crater, the inflation ridges around you might look like the opposite. However, these ridges formed from the lava rising up, rather than tall, thick lava flows flowing down. <br /> <br /> Lava can hold onto gasses, even as a liquid. Different minerals, such as silica, magnesium, and iron create a texture that can hold on to some gases easier than others. When lava cools, these gases rise upwards and outwards to escape into the air, and sometimes the lava expands with it. A similar process happens when bread bakes and expands in an oven.<br /> <br /> Lava with more magnesium is usually more black in color, while high iron levels turn the rock red. Where do you see the differences in this amphitheater? Why do you think some areas inflated while others did not?</p>
Lava Falls Trail Stop #6
~0 min drive
<p>Although lava rock does not have many nutrients for plants to use, the McCartys lava creates a reservoir of precious water plants need to survive. Water trickles through the cracks of the rock and collects beneath the lava while still protected from the intense sunlight and…
Lava Falls Trail Stop #7
~0 min drive
<h2>Pockets of Life</h2> <p>Lava does not always stay the same when it stops moving. As lava is exposed to outside air, it begins to cool. As lava cools, it contracts or shrinks, cracks, and sometimes falls apart. Rock may break apart and fall if there is nothing below a rock…
Lava Falls Trail Stop #4
~0 min drive
<h2>Lava Fall</h2> <p>Most lava is liquid during a Hawaiian-style volcanic eruption. Since liquid follows the path of least resistance--which is typically downhill--you are standing slightly downhill from McCartys Crater. <br /> <br /> Like any liquid, melted lava rock flows…
Lava Falls Trail Stop #3
~0 min drive
<h2>McCartys Crater </h2> <p>All lava erupts from somewhere, and in the case of the lava you are standing on, it erupted erupted from McCartys Crater. The crater had been a cinder cone volcano, which is the same feature as El Calderon within El Malpais and Wizard Island in the…
Lava Falls Trail Stop #8
~0 min drive
<h2>Wilderness: A Tricky Value to Define</h2> <p><br /> Most of El Malpais National Monument, including this trail, is managed as wilderness. Managing wilderness is a balance between maintaining an untrammeled and undeveloped area in a way that prevents future damage while als…
Lava Falls Trail Stop #2
~1 min drive
<h2>The Ground is Lava</h2> <p>Flowing lava creates different features and textures as it flows over, around, and under older, cooler lava flows. Gas bubbles trapped in the rock caused some areas to expand upward and outward. The speed and temperature of other lava flows cau…
Lava Falls Trail Stop #9
~1 min drive
<h2>Connections Over Time</h2> <p><br /> The McCartys flow may be young by geologic standards, but it is old enough to be included in human history. It is very likely that ancestors of today's Acoma Pueblo, Zuni Pueblo, and Navajo Nation all witnessed the McCartys eruption.<br…
Lava Falls Trail Stop #1
~1 min drive
<h2>Hawaiian-Style in the High Desert</h2> <p>You will be hiking on is some of the youngest, if not the youngest, lava in the region from this point on. The McCartys lava erupted between 1,200 and 3,900 years ago. When compared to the Cretaceous-era sandstone cliffs you drov…
El Calderon Lava Trench
~26 min drive
<p>Along the trail to the cinder cone, look for a deep, winding trench that begins at the mouth of the cinder cone volcano up ahead. This trench was created by a river of lava that breached the side of the cinder cone and swept cinder and lava several miles to the southeast. L…
Life on the Edge
~27 min drive
Lava, though it may seem harsh and inhospitable, can create some unusual habitats. One of these habitats is actually found just along the edges of lava flows. Known as the "edge effect," dense vegetation seems to thrive along the lava's edge. Scientists hypothesize that rainwa…