Carbonate forms in Residual Horizons of Limestone Derived Soils in Northern Arizona

Levine, Sarah; Hendricks, D. M.

doi:10.1016/s0166-2481(08)70350-7

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…This is evidenced by partially dissolved or etched grains that are surrounded by voids with shapes that match the grain edges. Additionally, many grain boundaries are indistinct and surrounded by amorphous silica (Allen, 1985;Levine and Hendricks, 1990;Maliva and Siever, 1988;Reheis, 1988;Watts, 1978). The products of this dissolution reprecipitate as secondary minerals, including sepiolite and/or amorphous silica (Monger and Adams, 1996;Monger and Kelley, 2002).…”

Section: Discussion: Pendant Formationmentioning

confidence: 99%

“…Multiple, laminar layers of pedogenic calcium carbonate and/or silica that accumulate on the bottoms of clasts in coarse or gravely soils are referred to as pendants, carbonate coats, cutans, rinds, beards, gravel coatings, and pebble bottom coatings (Amundson et al, 1989;Blank and Fosberg, 1990;Blisniuk and Sharp, 2003;Chadwick et al, 1988;Ducloux and Laouina, 1989;Levine and Hendricks, 1990;Munk and Southard, 1993;Pustovoytov, 1998Pustovoytov, , 2002Sowers et al, 1988;Treadwell-Steitz and McFadden, 2000;Vincent et al, 1994). Pendants are important yet poorly understood features of calcic and duric soils in arid, semi-arid, and cryic regions of the world (Courtey et al, 1994;Forman and Miller, 1984;Sletten, 1988;Wang and Anderson, 1998).…”

Section: Introductionmentioning

confidence: 99%

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A new formation process for calcic pendants from Pahranagat Valley, Nevada, USA, and implication for dating Quaternary landforms

Brock

Buck

2005

Quat. res.

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It has been assumed that soil pendants form in a similar manner as stalactites, in which innermost laminae are the oldest and outer laminae are the youngest. This study presents a new interpretation for soil pendant development. Pahranagat Valley, Nevada, pendants contain features indicating continued precipitation through time at the clast–pendant contact, implying that the oldest deposits are not always found at the pendant–clast contact, as other studies have assumed. These features include a void at the clast–pendant contact where minerals such as calcium carbonate, silica, and/or fibrous silicate clays precipitate. In addition, fragments of the parent clast and detrital grains are incorporated into the pendant and are displaced and/or dissolved and result in the formation of sepiolite. This study indicates that pendants are complex, open systems that during and after their formation undergo chemical changes that complicate their usefulness for dating and paleoenvironmental analyses.

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Section: Discussion: Pendant Formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new formation process for calcic pendants from Pahranagat Valley, Nevada, USA, and implication for dating Quaternary landforms

Brock

Buck

2005

Quat. res.

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“…Internally or between horizons, pedogenic carbonate laminae often exhibit different morphologies, colors, mineral compositions, geochemistries, and architecture (Brock & Buck, 2009;Levine & Hendricks, 1990).…”

Section: )mentioning

confidence: 99%

What Can Petrocalcic Laminae Tell Us About Soil Processes and Paleoenvironments?

Crandall¹

2019

32nd Keck Proceedings Volume

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“…The accepted mode of formation of laminar caps is addressed by a broader model for calcic and petrocalcic horizon development (e.g., Schoeneberger et al, 2012). This progressive horizon development model was developed first as a four-stage model including the laminar horizon at stage IV, and later refined to include two additional, later stages Internally or between horizons, pedogenic carbonate laminae often exhibit different morphologies, colors, mineral compositions, geochemistries, and architecture Levine & Hendricks, 1990).…”

Section: Introductionmentioning

confidence: 99%

32nd Keck Proceedings Volume

2019

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sediments would be deposited closer to where the stream enters the lake. This finding, suggests that the inlet stream is eroding as well as depositing sediment, and that some transported sediment may bypass the delta entirely, especially during high water discharge periods. Smear slides show an increase in grain size from clays dominating sediments older than the Glacier Peak G/Mt. St. Helens J ashes to coarser sediment in the upper ~2 m of the cores (Myrbo et al., 2019). Suspended sediment and water discharge data We measured suspended sediment concentrations at inlets and outlets of Redrock, Fishercap, and Swiftcurrent lakes to provide preliminary insights into sediment sources and sinks within the valleys. Preliminary total suspended solids (TSS) data show TSS is higher at the outlets than at the inlets of Redrock and Fishercap lakes, suggesting that the lakes are not currently efficient sediment traps and may be sources of material for Swiftcurrent Lake. Comparison of sediment concentrations from Swiftcurrent and Grinnell Valleys suggests that Swiftcurrent Valley transports more sediment than Grinnell Valley into Swiftcurrent Lake. Preliminary estimates of water discharge coming from Lake Josephine show more water enters Swiftcurrent Lake from Grinnell Valley than that from Swiftcurrent Valley, but TSS concentrations are lower in the Grinnell Valley discharge. This has implications for our interpretations of climate and environmental change from cores that receive sediment and water from both valleys (MacGregor et al., 2019; Myrbo et al., 2019).

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Carbonate forms in Residual Horizons of Limestone Derived Soils in Northern Arizona

Cited by 8 publications

References 11 publications

A new formation process for calcic pendants from Pahranagat Valley, Nevada, USA, and implication for dating Quaternary landforms

A new formation process for calcic pendants from Pahranagat Valley, Nevada, USA, and implication for dating Quaternary landforms

What Can Petrocalcic Laminae Tell Us About Soil Processes and Paleoenvironments?

32nd Keck Proceedings Volume

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