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Depth interval: DSDP_64_478

DSDP_64_478 - Depth interval #

A heat flow depth interval is a vertical depth interval within the Earth's subsurface, defined by top and bottom depth measurements, over which temperature measurements are taken to determine the terrestrial heat flow at a given location. This interval is used to assess the rate at which heat is conducted from the Earth's interior to the surface. The depth interval is characterized by its vertical extent, which allows for the analysis of temperature gradients and the calculation of heat flux. This data is crucial for understanding geothermal gradients, heat transfer processes, and the thermal structure of the Earth's crust at that location.

Top
–
Bottom
464.00 m
Vertical Depth
464.00 m
Vertical Datum
Mean Sea Level
Lithology
Basalt;  Sediment
Geologic Age
Late Pleistocene
Stratigraphy

Measurements

Heat Flow
153.00 mW/m²
Uncertainty
2.00 mW/m²
Temperature Gradient
Thermal Conductivity
Method
Interval method
Expedition/Platform/Ship
D/V Glomar Challenger
Probe Type
-
Probe Length
–
Probe Penetration
–
Probe Tilt
–
Comment

None

Mean Thermal Conductivity
1.89 W/mK
Uncertainty
0.21 W/mK
Method
Lab - line source / full space
Averaging Methodology
Random or periodic depth sampling
Source
Core samples
Saturation State
Recovered
Pt Conditions
-
Pt Function
-

Thermal Gradient
126.00 K/km
Uncertainty
1.00 K/km
Corrected Gradient
126.07 K/km
Corrected Uncertainty
0.56 K/km
Method (Top)
SUR
Method (Bottom)
CBHT
Shut-In Time (Top)
–
Shut-In Time (Bottom)
22.00 h
Correction Method (Top)
Horner plot
Correction Method (Bottom)
Horner plot
Number Of Temperature Recordings
4