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arxiv: 1906.11534 · v1 · pith:7AKVNMJ3new · submitted 2019-06-27 · ⚛️ physics.geo-ph

Seismic Moment and Recurrence: Microstructural and mineralogical characterization of rocks in carbonate fault zones and their potential for luminescence and ESR dating

Evangelos Tsakalos , Maria Kazantzaki , Aiming Lin , Yannis Bassiakos , Eleni Filippaki , Nishiwaki Takafumi This is my paper

Pith reviewed 2026-05-25 14:04 UTC · model grok-4.3

classification ⚛️ physics.geo-ph
keywords carbonate fault zonesluminescence datingESR datingfault rocksquartzcataclastic deformationseismic datingmicrostructural analysis
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The pith

Carbonate fault rocks contain quartz suitable for luminescence and ESR dating of past seismic deformations.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper examines three carbonate fault zones that host mirror-like structures through microstructural, mineralogical, and temperature analysis to test whether their rocks can support absolute dating of tectonic events. It concludes that the samples qualify as datable materials because they contain quartz, record repeated cataclastic deformation, and have undergone the physical and chemical conditions needed to trap chronological information. A reader would care because successful application of luminescence and ESR methods could supply absolute ages for faults on timescales from years to millions of years, addressing the current lack of direct dating for seismic activity. The work remains preliminary and stops at establishing potential rather than producing dates.

Core claim

The collected samples can be considered datable fault-rock materials, since they contain suitable minerals (quartz) for luminescence and ESR dating, have experienced repeated cataclastic deformation and have been subject to various physical and chemical processes as well as pressure and temperature conditions.

What carries the argument

Microstructural and mineralogical characterization of fault mirror-like structures combined with palaeo-maximum temperature analysis to evaluate retention of chronological information in quartz.

If this is right

  • These fault rocks become viable targets for absolute dating of seismic events using established luminescence and ESR protocols.
  • Dating can span timescales from recent years to several million years.
  • Repeated cataclasis and associated processes create the mineral conditions required for signal accumulation.
  • The approach supplies a route to absolute ages for faults where other methods have been insufficient.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Obtaining actual dates from these samples would allow direct tests of seismic recurrence intervals in the studied zones.
  • The same characterization workflow could be applied to other carbonate or silicate fault zones to expand the pool of datable materials.
  • Integration with independent age controls, such as cross-cutting relations or other geochronometers, would strengthen the method.

Load-bearing premise

Energy traps in the quartz retain chronological information from tectonic deformations without later resetting by physical, chemical, or thermal events.

What would settle it

Direct luminescence or ESR measurements on the same samples that show no trapped charge corresponding to known deformation ages or evidence of complete recent resetting.

read the original abstract

The important question of absolute dating of seismic phenomena has been the study of several researchers over the past few decades. The relevant research has concentrated on 'energy traps' of minerals, such as quartz or feldspar, which may accumulate chronological information associated with tectonic deformations. However, the produced knowledge so far, is not sufficient to allow the absolute dating of faults. Today, Luminescence and Electron Spin Resonance (ESR) dating methods could be seen as offering high potential for dating past seismic deformed features on timescales ranging from some years to even several million years. This preliminary study attempts to establish the potential of three different carbonate fault zones hosting fault mirror-like structures, to be used in luminescence and ESR dating, based on their microstructural, mineralogical and palaeo-maximum temperatures analysis. The results indicated that the collected samples can be considered datable fault-rock materials, since they contain suitable minerals (quartz) for luminescence and ESR dating, have experienced repeated cataclastic deformation and have been subject to various physical and chemical processes as well as pressure and temperature conditions.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 0 minor

Summary. The manuscript reports microstructural, mineralogical, and palaeo-maximum temperature analyses of samples from three carbonate fault zones hosting fault mirror-like structures. The central claim is that these samples qualify as datable fault-rock materials for luminescence and ESR dating of seismic events because they contain quartz, record repeated cataclastic deformation, and have experienced diverse physical, chemical, pressure, and temperature conditions.

Significance. The work supplies detailed characterization of deformation fabrics and mineral assemblages in carbonate fault rocks, which could serve as a starting point for identifying candidate materials for absolute dating of fault slip. Credit is due for the integration of multiple analytical techniques to constrain thermal and deformation history. However, because the datability conclusion is not accompanied by quantitative dose measurements, signal-zeroing tests, or retention experiments, the immediate significance for seismic chronology remains prospective rather than demonstrated.

major comments (1)
  1. [Abstract] Abstract: the statement that the samples 'can be considered datable fault-rock materials' because they contain quartz and record cataclasis equates mineral presence plus deformation history with datability. This does not address the explicit limitation noted in the same paragraph—that prior work has not established whether energy traps retain deformation-tied chronological information without later resetting—nor does it supply the missing tests for signal stability or zeroing.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the careful reading and constructive comments. The manuscript is a preliminary microstructural and mineralogical characterization study whose goal is to identify candidate fault-rock materials for future luminescence/ESR work; it does not claim to have performed the dating tests themselves. We address the single major comment below and will revise the abstract accordingly.

read point-by-point responses

  1. Referee: [Abstract] Abstract: the statement that the samples 'can be considered datable fault-rock materials' because they contain quartz and record cataclasis equates mineral presence plus deformation history with datability. This does not address the explicit limitation noted in the same paragraph—that prior work has not established whether energy traps retain deformation-tied chronological information without later resetting—nor does it supply the missing tests for signal stability or zeroing.

    Authors: We agree that the current abstract wording is imprecise and could be read as claiming demonstrated datability rather than identification of suitable candidate materials. The study deliberately limits itself to documenting quartz content, repeated cataclasis, and palaeo-temperature constraints as necessary (but not sufficient) prerequisites; the explicit limitation regarding energy-trap stability is already stated in the introduction and is the reason the work is framed as prospective. To remove any ambiguity we will revise the abstract to state that the samples qualify as candidate materials for subsequent luminescence and ESR dating studies, rather than as already datable. No new data on dose, zeroing, or retention will be added, as those experiments lie outside the scope of the present characterization paper. revision: yes

Circularity Check

0 steps flagged

No circularity in characterization study

full rationale

The paper is a microstructural and mineralogical characterization of fault-rock samples to evaluate suitability for luminescence/ESR dating. Its central claim follows directly from observed mineral content (quartz), deformation history, and P-T conditions compared against known requirements of the dating methods. No equations, fitted parameters, predictions, or self-citations appear in the provided text; the assessment contains no derivation chain that reduces to its own inputs by construction.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The claim depends on the background assumption that luminescence and ESR signals in quartz survive cataclasis and record deformation timing, drawn from prior literature rather than demonstrated here.

axioms (1)
  • domain assumption Luminescence and ESR methods can accumulate and retain chronological information in quartz and feldspar associated with tectonic deformations
    Invoked in the abstract's opening paragraph on energy traps and prior research limitations.

pith-pipeline@v0.9.0 · 5748 in / 1169 out tokens · 23428 ms · 2026-05-25T14:04:05.980803+00:00 · methodology

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Reference graph

Works this paper leans on

7 extracted references · 7 canonical work pages

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