trustme.bro/r/…
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the claim
Subsurface temperature increases predictably with digging depth due to the geothermal gradient
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

The increase of subsurface temperature with depth (the geothermal gradient) is a fundamental, universally observed geophysical property of the Earth and does not require academic citation.

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The analysis

The claim states that subsurface temperature increases predictably with digging depth due to the geothermal gradient. This is a well-established and universally understood physical phenomenon of the Earth, qualifying as common knowledge. No citations are needed for basic everyday or textbook scientific observations of this nature.

Everything we examined (12)
  1. Exploratory analysis of machine learning methods in predicting subsurface temperature and geothermal gradient of Northeastern United Statespeer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. On the ground thermal conductivity estimation with coaxial borehole heat exchangers according to different undisturbed ground temperature profilespeer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Advanced Computational Methods for Modeling, Prediction and Optimization-A Review.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Abnormally low heat flow in Southeast China resulted from remnant slab subducted beneath the east Asian lithospherepeer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Resilience of deep aquifer microbial communities to seasonal hydrological fluctuations.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Lithospheric structural dynamics and geothermal modeling of the Western Arabian Shield.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Research Progress on Micro/Nanopore Flow Behavior.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. The role of subsurface geomechanics in the green energy transition.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Exploratory Analysis of Machine Learning Methods in Predicting Subsurface Temperature and Geothermal Gradient of Northeastern United Statespeer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Study on the genesis mechanism of geothermal resources in the Yunkai area, South China based on geophysical data.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Evaluation of geothermal reservoir characteristics and resource potential in Qapqal Xibe Autonomous County.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Numerical simulation study on inferring the location of subsurface karst water channels using shallow geothermal field data.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → COMMON KNOWLEDGE · 9505 Aug 2026
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