Dear Louise Lenoir,

Thank you for your detailed response to the comments by both reviewers. I believe the changes that you are proposing will address these comments adequately, and I also find the newly suggested figures much improved. Reviewer 1 also presented detailed suggestions to improve the presentation, which I fully support. In addition to these I would like to draw your attention to a few other perceived deficiencies listed below, which I would like you to consider in your revision.

With all suggested changes implemented, I believe this study will make for an interesting contribution.

Regards,

Axel Schmitt (Heidelberg University)

Line 70: Uncountable nouns such as general concepts (e.g., geological setting, fluid flow, alteration etc.) or materials (e.g., granite, fluorite) should generally be in singular form
Line 79: Better: Two main geological units crop out at Pierre-Perthuis...
Line 84: Both fluorite mineralizations ...
Fig. 2 legend: Two-mica granite
Line 104: observed = investigated
Line 123: microns not a SI unit (micrometres)
Line 126: lower case synchrontron
Line 121: keV (kilo = lower case)
Line 168: I am a bit surprised that there is no independently determined value for the reference sulfide. Please verify.
Table 2: This is duplicating the text and therefore unnecessary.
Line 182: Spell out elemental symbol at beginning of sentence
Line 189: No period between J and cm-2
Line 207: Add space after 155
Line 209: Use elemental symbol in sentence (He)
Line 257: Single sentence paragraph is awkward; delete and add above: Regarding calcite reference materials and unknown fluorite samples (Fig. A1, Table A1 of Appendix A, and supplementary material), ...
Line 260: Delete first singe-sentence paragraph. Start with: The oldest out of three fluorite generations ... and call out figure where appropriate.
Line 264: yellow/honey = what does this mean?
Line 275: Significant... = Uranium was only detected in ...
Line 319: First sentence/paragraph is unnecessary.
Line 320: have been = were
Figs 8 and 9: These should be presented in the Results section 4.3, and not in the discussion.
Line 414: extremities = I do not understand what is meant here
Line 422: area = distance
Line 438: damages = damage; have been = were
Line 465: Please combine both mini-sections 5.3.1 and 5.3.2
Line 480: Ambiguous sentence. Better state: ...geochronology of authigenic phases with elevated common Pb such as ...

Dear Louise Lenoir,

Your revisions have been received, and overall these are satisfactory. There are a few minor technical issues that need to be corrected, and these are listed below.
Otherwise, I find you study essentially ready for publication.

Best regards,

Axel Schmitt (Heidelberg University)

Line 81: units crop out at Pierre-Perthuis
Line 112: better use “imaged” instead of “observed”
Line 125: The introductory “According to Enkelmann et al., 2005” is not needed. Start with: “The correction factor...” and end with the citation (Enkelmann et al., 2005).
Line 157: should be: between 100 and 300; also use symbol (µm) instead of micormeters. “will not be revealed from the whole sample thickness” this is phrased awkwardly, and hard to understand. Express the fact positively, not negatively. Do you mean: “...are only registered from near-surface layers of the sample”?
Line 176: laser fluorination gas source mass spectrometry (?)
Line 307: gold metalized = gold coated (?)
Line 314: Please rephrase: “Lead was detected in pyrite crystals and Flog2 (Figs. 5 and 6, respectively)”
Line 320: delete crystal
Line 323: A focus = Detail of pyrite crystal; also, delete concentrations
Line 335: Maps dimensions = Map dimensions
Line393: Make sentence in parentheses separate (no parentheses).
Line 354: Something is missing here. Should be: “Tera-Wasserburg diagram of LA-ICP-MS data for fluorite”
Line 360: that = which
Line 366: I am not sure when you use elemental symbols, and when not. For consistency, I would use U and Zr.
Line 379: “As an analogy, it can be mentioned that...” Delete.
Line 538: First line is unclear. Maybe use “;” instead of “,”
Line 542: Kahn et Forgue = and

Dear Dr. Lenoir
your paper is now acceptable for publication pending some technical corrections.
See comment provided by the Associate Editor.
I have a few additions editorial requests.
Use the name of the element only at the beginning of the sentence or when referring to the material (lead pipe, gold coin, aluminum foil...)
Report data and errors with consistent decimal places
For decimals use point not comma.
I did not find all mistakes or places of poor wording. Look through the text and correct at least the most obvious ones.
Additional correction requests are found in the attached file.