Use my Search Websuite to scan PubMed, PMCentral, Journal Hosts and Journal Archives, FullText. Kick-your-searchterm to multiple Engines kick-your-query now !>

A dictionary by aggregated review articles of nephrology, medicine and the life sciences Your one-stop-run pathway from word to the immediate pdf of peer-reviewed on-topic knowledge.

10.1016/j.gexplo.2020.106664 http://scihub22266oqcxt.onion/10.1016/j.gexplo.2020.106664 33041466!7536136!33041466     free     free     free Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       J+Geochem+Explor 2021 ; 220 (ä): 106664 Nephropedia Template TP {{tp|p=33041466|t=2021. Mechanisms for Pd-Au enrichment in porphyry-epithermal ores of the Elatsite deposit, Bulgaria |pdf=|usr=}}{{33041466}} gab.com Text Mechanisms for Pd-Au enrichment in porphyry-epithermal ores of the Elatsite deposit, Bulgaria JO: J Geochem Explor http://www.kidney.de/pget.php?&tw=1&pmid=33041466 #FOAvip Porphyry Cu can contain significant concentrations of platinum-group elements (PGE: Os, Ir, Ru, Rh, Pt, Pd). In this study, we provide a comprehensive in situ analysis of noble metals (PGE, Au, Ag) for (Cu-Fe)-rich sulfides from the Elatsite, one of the world's PGE-richest porphyry Cu deposits. These data, acquired using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), indicate that Pd was concentrated in all the (Cu-Fe)-rich sulfides at ppm-levels, with higher values in pyrite (~6?ppm) formed at the latest epithermal stage (i.e., quartz-galena-sphalerite assemblage) than in bornite and chalcopyrite (<5?ppm) from the hypogene quartz-magnetite-bornite-chalcopyrite ores. Likewise, Au is significantly more concentrated in pyrite (~5?ppm) than in the (Cu-Fe)-rich sulfides (</=0.08?ppm). In contrast, Ag reaches hundreds of ppm in pyrite and bornite (~240?ppm) but is in much lesser amounts in chalcopyrite (<25?ppm). The inspection of the time-resolved spectra collected during LA-IPC-MS analyses indicates that noble metals are present in the sulfides in two forms: (1) structurally bound (i.e., solid solution) in the lattice of sulfides and, (2) as nano- to micron-sized inclusions (Pd-Te and Au). These observations are further confirmed by careful investigations of the PGE-rich (Cu-Fe)-rich sulfides by combining high-spatial resolution of field emission scanning electron microscope (FESEM) and focused ion beam and high-resolution transmission electron microscopy (FIB/HRTEM). A typical Pd-bearing mineral includes the composition PdTe(2) close to the ideal merenskyite but with a distinct crystallographic structure, whereas Au is mainly found as native element. Our detailed mineralogical study coupled with previous knowledge on noble-metal inclusions in the studied ores reveals that noble metal enrichment in the Elatsite porphyry ores was mainly precipitated from droplets of Au-Pd-Ag telluride melt (s) entrained in the high-temperature hydrothermal fluid. These telluride melts could separate at the time of fluid unmixing from the silicate magma or already be present in the latter either derived from deep-seated crustal or mantle sources. Significant enrichment in Pd and Au (the latter correlated with As) in low-temperature pyrite is interpreted as remobilization of these noble metals from pre-existing hypogene ores during the epithermal overprinting. Twit Text FOAVip Mechanisms for Pd-Au enrichment in porphyry-epithermal ores of the Elatsite deposit, Bulgaria ????J Geochem Explor http://www.kidney.de/pget.php?&tw=1&pmid=33041466 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33041466 #FOAvip English Wikipedia <ref>{{Cite pmid|33041466}}</ref> Mechanisms for Pd-Au enrichment in porphyry-epithermal ores of the Elatsite deposit, Bulgaria #MMPMID33041466 Gonzalez-Jimenez JM; Pina R; Kerestedjian TN; Gervilla F; Borrajo I; Pablo JF; Proenza JA; Tornos F; Roque J; Nieto F J Geochem Explor 2021[Jan]; 220 (ä): 106664 PMID33041466show ga Porphyry Cu can contain significant concentrations of platinum-group elements (PGE: Os, Ir, Ru, Rh, Pt, Pd). In this study, we provide a comprehensive in situ analysis of noble metals (PGE, Au, Ag) for (Cu-Fe)-rich sulfides from the Elatsite, one of the world's PGE-richest porphyry Cu deposits. These data, acquired using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), indicate that Pd was concentrated in all the (Cu-Fe)-rich sulfides at ppm-levels, with higher values in pyrite (~6?ppm) formed at the latest epithermal stage (i.e., quartz-galena-sphalerite assemblage) than in bornite and chalcopyrite (<5?ppm) from the hypogene quartz-magnetite-bornite-chalcopyrite ores. Likewise, Au is significantly more concentrated in pyrite (~5?ppm) than in the (Cu-Fe)-rich sulfides ( äMechanisms for Pd-Au enrichment in porphyry-epithermal ores of the Ela(epmc).pdf DeepDyve Pubget Overpricing