Results 41 to 50 of about 4,997 (224)
Geochemistry of Uranium and Rare Earth Elements in the Phosphate Horizon of Jeiroud Formation, Firoozkuh area, Central Alborz Zone [PDF]
مجله علوم و فنون هستهایTwo phosphorite deposits including Paghela and Gadok, within the Jiroud Formation (Upper Devonian) in the northeast of Firoozkuh in the Central Alborz geotectonic zone have been studied.
Samaneh Ziapour, Khalegh Khoshnoodi
doaj +1 more source
LIBS-MLIF Method: Stromatolite Phosphorite Determination
Chemosensors, 2023 The search for biominerals is one of the core targets in the deep space exploration mission. Stromatolite phosphorite is a typical biomineral that preserves early life on Earth.
Hongpeng Wang +6 more
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Iron Sources and Cycling During Diagenetic Transformations of Negev Phosphorites (Israel)
Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.Abstract The Late Cretaceous Negev area in the Levant was influenced by high productivity upwelling in southern Tethys, leading to massive deposition of phosphorites. The phosphorites occur in two facies: (a) pristine phosphorites with low phosphorous (P) content, formed under low‐energy, high‐productivity conditions, and (b) reworked phosphorites with
Irina Zweig +3 more
wiley +1 more source
Estonian georesources in the European context [PDF]
Estonian Journal of Earth Sciences, 2008 Estonia is situated on the southern buried slope of the Baltic Shield where the sedimentary bedrock overlies the Precambrian crystalline basement. The Cambrian section contains mainly sandstone and clay (e.g.
Raudsep, Rein
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Water resources data for Alachua, Bradford, Clay, and Union Counties, Florida [PDF]
, 1964 A study of the water resources of Alachua, Bradford, Clay, and Union counties, Florida (fig. 1), was made by the Water Resources Division of the U. S. Geological Survey in cooperation with the Florida Geological Survey during the period 1957-61.
Cagle, Joseph W. +3 more
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Advanced Sensor Research, Volume 5, Issue 3, March 2026.We introduce a new integrated line‐scan sensor system that combines hyperspectral and laser‐induced fluorescence imaging as a non‐invasive alternative characterization technique specifically suited for rare‐earth element (REE) mapping and identification. We investigate in detail the potential and limitations in comparison to state‐of‐the‐art approaches
Titus Abend +7 more
wiley +1 more source
Comparative characteristics of export transactions of a chemical industry enterprise [PDF]
E3S Web of Conferences, 2020 In the work, the economic justification of the efficiency of export operations of LLC “Industrial Group “Phosphorite” was carried out. The enterprise under study is a part of EuroChem Group AG and sells products on the Russian market and also exports ...
Kirillova Tatyana +3 more
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Ground water in the Immokalee area, Collier County, Florida [PDF]
, 1967 The scope of the investigation involved the drilling of test holes and the detailed inventorying of existing wells in order to define the location, depth, potential yield, and chemical quality of the water contained in the shallow aquifer that might ...
McCoy, Henry J.
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Electrochemically recovered struvite matches conventional fertilizers in soil nutrient supply
Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.Abstract Phosphorus (P) is an essential macronutrient for agriculture, yet global reliance on finite phosphorite reserves raises concerns about long‐term food and nutrient security. Struvite (MgNH4PO4·6H2O), a mineral recovered from municipal wastewater, represents a sustainable and circular source of P, but uncertainty remains regarding its nutrient ...
Sudarshan Kharal +4 more
wiley +1 more source
Water resource records of the Econfina Creek Basin area, Florida [PDF]
, 1968 The Econfina Creek basin area in northwestern Florida, which includes Bay County, southeastern Washiigton County, and parts of Calhoun, Gulf, and Jackson counties is shown in figure 1. The basin has an abundant supply of ground water and surface water
Foster, J. B. +2 more
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