Results 51 to 60 of about 4,997 (224)
Chemotrophic Microbial Mats and Their Potential for Preservation in the Rock Record [PDF]
, 2009 Putative microbialites are commonly regarded to have formed in association with photosynthetic microorganisms, such as cyanobacteria. However, many modern microbial mat ecosystems are dominated by chemotrophic bacteria and archaea.
Bailey, Jake V. +3 more
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Marine Ecology, Volume 47, Issue 2, March/April 2026.ABSTRACT Diverse invertebrate communities inhabiting carbonate rocks at methane seeps may rely on a mix of local chemosynthetic production and sinking photosynthetic organic matter, with relative importance shaped by environmental conditions. We investigate the contribution of chemosynthetic carbon to macrofaunal diets at six Southern California ...
Olívia S. Pereira +3 more
wiley +1 more source
Geologic quadrangle map no. 47 [PDF]
, 1978 Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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Methods in Ecology and Evolution, Volume 17, Issue 2, Page 531-553, February 2026.Abstract Bird seasonal migration is a remarkable biogeographic phenomenon, yet its deep‐time origin(s) and evolutionary history remain poorly understood, with the bird fossil record largely overlooked. This study explores the predictability of bird migratory behaviour from the oxygen isotope composition of their bone apatite phosphate (δ18Op), a ...
Anaïs Duhamel +7 more
wiley +1 more source
Analysis &Sensing, Volume 6, Issue 1, January 2026.Laser‐induced breakdown spectroscopy (LIBS), an atomic emission technique, is widely applied in fields like geology and biology. This rapid elemental analysis method leverages computational tools to boost precision and speed up data processing. This review explores machine learning and deep learning methods for analyzing LIBS spectral data, tackling ...
Pegah Dehbozorgi +3 more
wiley +1 more source
TECHNOLOGY OF PHOSPHORITE AND GLAUCONITE-BASED PHOSPHORITE FERTILIZERS IN KARAKALPAKSTAN
EPRA International Journal of Multidisciplinary Research (IJMR), 2020 In order to develop a simplified technology for obtaining phosphorus fertilizers, the process of chemical activation of Khojakul phosphorite flour with mineral fertilizers, which are the main standard fertilizers in agricultural production, was studied. Decomposition of glauconite with nitric, sulfuric and phosphoric acids was carried out.
null Bauatdinov Sali +2 more
openaire +1 more source
Well design as a factor contributing to loss of water from the Floridan Aquifer, eastern Clay County, Florida [PDF]
, 1962 A number of wells penetrating the Floridan aquifer in eastern Clay County were found to be losing water to permeable zones above this aquifer. A differential in artesian pressure was observed in closely spaced wells of similar depth.
Foster, James B.
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Geoarchaeology, Volume 41, Issue 1, January/February 2026.ABSTRACT The cities of Petra and Udhruh were administrative and cultural centers in southern Jordan from Nabataean through Roman and Byzantine times into the early Islamic periods (first century BCE to eighth century CE). These communities built water harvesting systems to be able to survive in this arid environment.
Marcel R. Hoosbeek +4 more
wiley +1 more source
New scientific direction of the bacterial paleontology in Mongolia
Mongolian Geoscientist, 2019 We review the initial development of Bacterial Paleontology in Mongolia and present some electron microscopic images of fossil bacteria in different stages of preservation in sedimentary rocks.
Dorj Dorjnamjaa +2 more
doaj +1 more source
Zeolitized tuffs in pedotechnique for quarry restoration: evaluation of phytonutritional efficiency in ^AUP model horizons [PDF]
, 2012 A study was started aiming at assessing the suitability of zeolitized tuff as optimal mineral Human Transported Materials (HTMs) in pedotechnologies for quarry ...
Buondonno, Andrea +8 more
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