I am looking for the chemical equations for the reactions representing the alteration of biotite to muscovite and chlorite. any help?

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I have get this error when i calculated the geometrical optimization for prco3, it takes 12 hours until gives this message in the outputfile?

Fatal error in MPI_Allreduce: Other MPI error, error stack: MPI_Allreduce(1628)......: MPI_Allreduce(sbuf=000002459254A180, rbuf=000002459F86A140, count=4851, MPI_DOUBLE_COMPLEX, MPI_SUM,...

09 August 2024 7,615 1 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How can we use mobile apps for improving students' academic performance?

Mobile apps can be a powerful tool for enhancing academic performance, how can we use mobile apps for improving academic performance

04 August 2024 9,492 0 View

Is someone interested in testing some of our new Alluaudite compounds (Molybdate) in the fields of heterogeneous catalysis and photocatalysis?

We have an original Alluaudite-Molybdate we want to test for catalysis and photocatalysis applications.

04 August 2024 2,261 1 View

Comment ajouter une recherche ?

En suivant toutes les étapes mentionnées sur (ajouter une recherche) il me signale erreur, ressayer, j'ai essayé plusieurs fois, sans succès, toujours il me signal erreur, ressayer

02 August 2024 9,719 1 View

Has anyone used Jump 2 before?

Jump 2 is the 1st app scientifically developed to measure your jump height.

31 July 2024 8,194 0 View

Why applying a saved template of a bar chart in a different/new one doesn't take effect in SPSS?

Using SPSS, I made my edits in one bar chart — e.g., font type and size, hiding grid lines, and colours, namely: blue, orange, green, purple, and grey for 5 bars, respectively, etc. — and I saved...

29 July 2024 1,981 1 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View

While using the IHC PROFILER plugin in image j software, to quantify the epithelial cytoplasmic DAB staining do you crop remove the stromal tissue?

My question pertaining to the DAB staining in cytoplasm of human oral squamous cell carcinoma tissue. When quantifying the epithelial cancer cells do we have to crop remove the stromal tissue?...

29 July 2024 2,682 6 View

Why practical assessments of dislocation density by XRD ignores the texture which apparently affects the result?

As one can read in numerous papers on this matter, the dislocation density is derived from the dependence of peak broadening on the diffraction angle, that is, on considered reflections. Thus, to...

28 July 2024 6,496 5 View

How did this rock form?

Dear RG members, I have produced a thin section of a rock in our rock collection, used for students enrolled in the second year of the bachelor of Geology at Sapienza University of Rome....

17 June 2024 689 3 View

How to differentiate minerals like illite, muscovite, biotite in xrd analysis?

11 February 2024 5,421 3 View

What is the most important differences of genesis of Biotite and Phlogopite?

I want to know more about important differences of genesis of Biotite and Phlogopite.

18 October 2023 7,370 0 View

What dating methods should be employed for basic metabasic volcanics as well as gabbro?

In the western Himalaya there are metabasic volcanics said to be intercalated with metasediments of supposedly proterozoic age. The metasediments are intruded lower Paleozoic granite. The granite...

01 October 2023 7,892 2 View

When looking at the Total Density of States function of two reactants and of a product, what are signs that bonding happened?

I have been working on a study of the sorption properties of a radio-isotope on a biotite surface. One of the methods of supporting the hypothesis of whether a reaction would happen or not is...

18 August 2023 4,262 1 View

Sulfates in ECRD dam leakage?

In a project, the bedrock foundation for the ECRD dam is gneiss (quartz feldspathic/muscovitic/ micaceous quartz). Also, the rockfill was made up of the same gneiss. Some leakage captured...

27 December 2022 2,067 4 View

How is primary biotite distinguished from reequilibrated biotite?

Electron Probe Microanalysis, Granites

27 November 2022 2,927 6 View

How to explain the negative Sr anomaly in plagioclase-rich cumulate rocks?

Hi, all. I have a set of cumulate rocks formed by the accumulation of plagioclase and biotite. The proportion of plagioclase is around 55%-60%. However, the whole-rock geochemical data show a...

05 January 2022 9,424 3 View

Intracellular potassium concentration, [K+], is high in all branches of life. If that started at life's origins, where did the K+ come from?

I'm proposing that life originated between the sheets of mica, which are held together by K+, and that this is the source of the high intracellular [K+] in living cells. What are your thoughts...

09 May 2021 7,102 5 View

Why zircon inclusions in biotite are so abundant?

Dear colleagues: Studying thin sections of silicic magmatic rocks, I wonder why zircon inclusions in biotite are so abundant. What is the nature of this co-crystallization, and are there any...

01 April 2021 4,416 14 View

Michael Anenburg

Here's a simple example:

5KMg3AlSi3O10(OH)2 + 12H2O + SiO2 + 8Al2SiO5 = 3Mg5Si3Al2O10(OH)8 + 5KAl3Si3O10(OH)2

Boris Reczko

Müller, G. Die autometamorphe retrograde Umwandlung von Biotiten in Chlorite und Muskowite in sauren Tiefengesteinen. Contr. Mineral. and Petrol. 13, 295–365 (1966). https://doi.org/10.1007/BF00517991