undersaturated


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undersaturated

[¦ən·dər¦sach·ə‚rād·əd]
(petrology)
Pertaining to igneous rock composed of unsaturated minerals, that is, without free silica.
References in periodicals archive ?
Recall that, whereas calcite dissolution can occur wherever the system is locally undersaturated, dissolution of aragonite occurs only in the ADZ, [x.sub.d] < x < [x.sub.d] + [h.sub.d].
Indeed, this paper found that passengers experiencing oversaturated condition are more sensitive to disturbances than those experiencing undersaturated conditions.
Seawater chemistry parameters were stable throughout the maintenance period, and in the low pH treatment the saturation states for calcite and aragonite were highly undersaturated (Table 1).
After 28 days of immersion in an undersaturated aqueous solution of Ca[Cl.sub.2] and [Na.sub.2]HP[O.sub.4], untreated titanium disks exhibited only minor deposition of particles on their surfaces (Figure 6A).
Meteoric environment is characterized by pore fluid that is either supersaturated or undersaturated however mostly undersaturated with respect to metastable carbonate species aragonite and magnesium calcite (Bathurst 1975).
Granitoids rich in zircon inheritances are probably undersaturated with respect to zircon at the source and consequently their calculated zircon saturation temperatures are most likely underestimations of the actual temperature of crystallization (Miller et al., 2003).
Results show that the water chemistry of the river was mainly Mg-Cl type and undersaturated with respect to anhydrite, gypsum and halite.
Colours look warm and natural, if a tad undersaturated.
In these scenarios the effects of rock and fluid compressibility on oil production rate are investigated for an undersaturated oil reservoir.
While these early studies were designed to broadly examine the carbon cycle, they provided the first evidence that aragonite became undersaturated in the bottom waters of the shallow shelf seas, particularly in summer and fall months (e.g., Bates et al.
In contrast, gypsum and fluorite are undersaturated in the groundwater, and their dissolution can be a significant contribution to the increased [Ca.sup.2+] in the groundwater.
Measurement of saturation indices of different water phases and also XRF analysis of sediment samples showed that the spring water is supersaturated towards phases of aragonite, calcite and dolomite and is undersaturated towards phases such as gypsum, halite and anhydrite.