Mineralogy and geochemistry of the carbonates in the Calatayud Basin (Zaragoza, Spain)

Mayayo, María José; Bauluz, Blanca; López-Galindo, Alberto; González-López, Jorge

doi:10.1016/0009-2541(95)00185-9

Cited by 19 publications

(14 citation statements)

References 19 publications

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“…Global average Sr/Ca ratios for limestone, granite and metasedimentary rocks are 0.0020, 0.0046 and 0.0075, respectively (Fralick and Kronberg, 1997;Faure, 1998;Chaudhri et al, 2003;Yang et al, 2002). The Sr/Ca ratio of soil carbonate ranges from 0.0014-0.0030 (Mayayo et al, 1996;Jacobson et al, 2002). These values from the literature are consistent with the values for paddy soils on the various parent materials.…”

Section: Specific Elemental Relationshipssupporting

confidence: 82%

“…The second group consists of Tr and Kk soils with an average Sr/Ca ratio of 0.0070 for which parent materials are riverine and marine sediments which are quite rich in Sr (Yang et al, 2002). The third group consists of Lb and Bph soils where calcite has crystallised within the soil profile so the lower Sr/Ca ratio (0.0025) may reflect the lower capacity of calcite to retain Sr relative to silicate minerals, which is where most Sr and Ca reside in the other soils (Mayayo et al, 1996). Global average Sr/Ca ratios for limestone, granite and metasedimentary rocks are 0.0020, 0.0046 and 0.0075, respectively (Fralick and Kronberg, 1997;Faure, 1998;Chaudhri et al, 2003;Yang et al, 2002).…”

Section: Specific Elemental Relationshipsmentioning

confidence: 97%

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The geochemistry of Thai paddy soils

et al. 2008

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Section: Specific Elemental Relationshipssupporting

confidence: 82%

Section: Specific Elemental Relationshipsmentioning

confidence: 97%

The geochemistry of Thai paddy soils

et al. 2008

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“…The Miocene limestones are a negligible source of detrital dolomite because it is rare in the Central Ebro area (Quirantes, 1978). Dolomite is a minor component associated with Miocene evaporites and carbonates in the Ebro Basin (Mingarro et al ., 1981; Mata et al ., 1988; Salvany & Ortí, 1994; Salvany et al ., 1994; Mayayo et al ., 1996), and it is also present in some Mesozoic and Palaeozoic rocks in the Iberian Range. The presence of dolomite in only a restricted number of surface playa lake sediments in the Ebro Basin (Mingarro et al ., 1981) suggests that dolomite‐bearing formations are only local suppliers of detrital dolomite and not regional sources for the Ebro valley.…”

Section: Discussionmentioning

confidence: 99%

Quaternary palaeohydrological evolution of a playa lake: Salada Mediana, central Ebro Basin, Spain

Valero‐Garcés¹,

Delgado‐Huertas²,

Izquierdo³

et al. 2000

Sedimentology

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Sedimentary features, mineralogy, bulk geochemical composition, stable isotope analyses and pollen data from sediment cores were used to reconstruct the Late Quaternary depositional evolution of the Salada Mediana playa lake (central Ebro Basin, northeastern Spain). The 150‐cm‐long sediment core sequence is composed of gypsum‐ and dolomite‐rich muds (Lower and Middle sections) and black, laminated, calcite‐bearing sediments (Upper section). The Salada Mediana formed as a karstic depression in the Miocene gypsum substratum during the Late Pleistocene. The Lower section was deposited in a sulphate–carbonate saline lake that ended with a period of desiccation and basin floor deflation. Subsequent deposition (Middle section) took place in a playa‐lake system. Two cycles of lower water table and expanded saline mud flats occurred. The Holocene sequence is missing, probably as a result of aeolian erosion. Sedimentation resumed only a few centuries ago, and saline pan environments dominated until modern times. The Salada Mediana facies succession was mainly governed by fluctuations in the hydrological balance, brine composition, and salinity; however, aeolian processes (detrital input and deflation) and recycling of previously precipitated salts also played a significant role.

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“…Particular notice has been given to clay minerals and zeolites, as these minerals represent important keys to deducing changes in source area, palaeoclimate, and sedimentary environments (see, for example, Mayayo et al, 1996;Inglès et al, 1998;English, 2001;Sáez et al, 2003). While many studies have examined the mineralogy of lacustrine sediments, less commonly have such studies considered the composition of both alluvial and lacustrine sediments, and the lateral changes occurring between the two environments.…”

Section: Introductionmentioning

confidence: 98%

Clay mineral assemblages and analcime formation in a Palaeogene fluvial–lacustrine sequence (Maíz Gordo Formation Palaeogen) from northwestern Argentina

Campo

Papa

Jiménez-Millán

et al. 2007

Sedimentary Geology

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The Palaeogene Maíz Gordo Formation is one of the main lacustrine events recorded in northwestern Argentina. It consists of sandstone, mudstone, and limestone beds 200 m thick, deposited in a brackish-alkaline lake and braided alluvial systems. The Maíz Gordo Lake evolved mainly as a closed system, with brief periods as an open one. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to study samples from seven sites, corresponding respectively to proximal, intermediate, and transitional positions of the fluvial environment and marginal and inner-lake environment, focusing on the clay mineralogy and analcime formation. The basinward zonation of diagenetic minerals identified in the Maíz Gordo Lake was: mordenite → analcime → K-feldspar. Although not a typical zonation of saline-alkaline lakes, it does indicate an increase in salinity and alkalinity towards the centre.In proximal fluvial settings, smectite predominates at the base of the sequence, with scarce kaolinite. Towards the top, a striking increase in kaolinite content suggests a change from a relatively arid climate with alternating humid and dry seasons, towards a warm and humid climate. Kaolinite content clearly decreases in a basinward direction. Such a variation is attributable to changes in hydro-geochemistry, denoting the progressive influence of the brackish and alkaline lake water on interstitial pores. SEM images of intermediate fluvial samples reveal authigenesis of illite at the expense of kaolinite booklets.In littoral and inner-lake settings the clay fraction is composed of muscovite, sometimes with subordinate smectite. Analcime occurs in variable amounts in all sedimentary facies, in rock pores or filling veins. It forms subhedral square to hexagonal, or anhedral rounded crystals, denoting that they coarsened at low to moderate degrees of supersaturation. Although the mordenite identified in a fluvial level would have been the precursor of analcime in the Maíz Gordo Basin, no textural evidence of analcime formation through replacement of mordenite or other precursor zeolite was found. Hence it is more probable that analcime formation took place by direct authigenic precipitation or through the reaction between interstitial brines and clay minerals or plagioclase.

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Mineralogy and geochemistry of the carbonates in the Calatayud Basin (Zaragoza, Spain)

Cited by 19 publications

References 19 publications

The geochemistry of Thai paddy soils

The geochemistry of Thai paddy soils

Quaternary palaeohydrological evolution of a playa lake: Salada Mediana, central Ebro Basin, Spain

Clay mineral assemblages and analcime formation in a Palaeogene fluvial–lacustrine sequence (Maíz Gordo Formation Palaeogen) from northwestern Argentina

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