A VOLCANIC ERUPTION IN ARKANSAS - 1856

"It appeared that the earth was on fire, burning from underneath."

[link to www.jstor.org]

seek and ye shall find

Thanks Jess, I had been looking for this info. I'd read another article somewhere before about it (months ago) but couldn't find again...

Very cool. I think I found the Caldera on topography images in the area and I think I see LAVA DOMES in it. No joke, what an odd but realistic area to have a super volcano we do not know about.

Some here in AR say it was Dry Creek Mt. which is still Logan county. Look it up on google earth. Appears it could very well be a caldera.

Arkansas also has an ancient volcanic past.

"America's Volcanic Past: Arkansas"

[link to vulcan.wr.usgs.gov]

Prairie Creek Volcanic "Pipe" (section at bottom of link):

One of the few places in North America where diamonds are present in their host rock and the only place tourists may hunt for diamonds is the Prairie Creek pipe in Arkansas. It is roughly triangular in surface outcrop, exposed over 73 acres, and is situated 2.5 miles southeast of Murfreesboro in Pike County. The site has been known to geologists since 1842. It is a breccia-filled volcanic pipe of Cretaceous age, formed by a series of gaseous explosions as are several other pipes nearby. Various rock types are present in the Arkansas diamondiferous pipes. Magmatic lamproite is a dark-colored igneous rock with a texture that has two distinct grain sizes (porphyritic). Some of it was broken explosively as it neared the earth's surface. This broken rock material is lamproite breccia tuff. Rarely have diamonds been reported in the soils formed by the weathering of magmatic lamproite; most have been recovered in the lamproite breccia tuff or in the thin residual soils overlying this rock. Microdiamonds, however, have been recovered from the magmatic rock by special techniques. Epiclastic rock, which is a rock formed by the mechanical mixing of tuffaceous volcanic material and local Cretaceous sediments, was recently recognized by geologists.

Arkansas's Lamproite:

Magmatic lamproite is a dark-colored igneous rock with a texture that has two distinct grain sizes (porphyritic). Some of it was broken explosively as it neared the earth's surface. This broken rock material is lamproite breccia tuff. Rarely have diamonds been reported in the soils formed by the weathering of magmatic lamproite; most have been recovered in the lamproite breccia tuff or in the thin residual soils overlying this rock. Microdiamonds, however, have been recovered from the magmatic rock by special techniques.


Arkansas Ancient Geologic Past

Jurassic or Triassic:

Intrusion of small localized bodies of magma in southern Arkansas, which crystallized to form igneous rocks.

Cretaceous (66 to 144 million years ago):

Deposition of water-laid volcanic debris preceded the accumulation of sand, marl, and chalk in shallow marine seas during the Late Cretaceous. About 100 million years ago, downwarping of the Mississippi Embayment resulted in the invasion of the region by a shallow sea. Igneous activity in central, southwestern, and eastern Arkansas; nearshore deposition of clastic and carbonate debris in the Early Cretaceous, along with deposition of gypsum and anhydrite in highly saline waters in southwestern Arkansas. Erosion occurs in the Interior Highlands.

My Dad lives is Scott County and I have seen the volcanic rock...is anyone still responding to this?

Danny

My Dad lives is Scott County and I have seen the volcanic rock...is anyone still responding to this?

Danny


Are you still around here? Where is this volcanic rock? I live in Sebastian County (and very close to Scott County) and have been trying to dig into this for 2 years. I've looked at so many maps and drove around but most of it is private property...e-mail me? [email protected]

Our whole earth is one huge volcano