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| isbn = 0-89181-602-X
| isbn = 0-89181-602-X
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T<sub>max</sub> is the temperature at which the maximum rate of [[hydrocarbon generation]] occurs in a [[kerogen]] sample during [[pyrolysis]] analysis. The S<sub>2</sub> peak represents the rate of hydrocarbon generation (the area under the curve represents the amount). The temperature at the time the S<sub>2</sub> peak is recorded during pyrolysis is T<sub>max</sub>, given in °C. [[:file:evaluating-source-rocks_fig6-6.png|Figure 1]] shows output from a pyrolysis analysis and when T<sub>max</sub> is recorded.
T<sub>max</sub> is the temperature at which the maximum rate of [[hydrocarbon generation]] occurs in a [[kerogen]] sample during [[Rock-Eval pyrolysis|pyrolysis]] analysis. The S<sub>2</sub> peak represents the rate of hydrocarbon generation (the area under the curve represents the amount). The temperature at the time the S<sub>2</sub> peak is recorded during pyrolysis is T<sub>max</sub>, given in °C. [[:file:evaluating-source-rocks_fig6-6.png|Figure 1]] shows output from a pyrolysis analysis and when T<sub>max</sub> is recorded.
[[file:evaluating-source-rocks_fig6-6.png|thumb|{{figure number|1}}See text for explanation.]]
[[file:evaluating-source-rocks_fig6-6.png|thumb|{{figure number|1}}See text for explanation.]]
==Interpreting t<sub>max</sub>==
==Interpreting t<sub>max</sub>==
We can use the general guidelines for maturation levels given below for Rock-Eval pyrolysis T<sub>max</sub> for types II and III kerogens. Different pyrolysis techniques have different cutoffs for pyrolysis oil and gas generation zone boundaries. Pyrolysis T<sub>max</sub> can be significantly different for type I kerogen<ref name=ch06r13>Tissot, B., P., Pelet, R., Ungerer, P., 1987, [http://archives.datapages.com/data/bulletns/1986-87/data/pg/0071/0012/1400/1445.htm Thermal history of sedimentary basins, maturation indices, and kinetics of oil and gas generation]: AAPG Bulletin, vol. 71, p. 1445–1466. Excellent review of the relationships between maturation indicators and hydrocarbon generation from kerogens.</ref> or kerogen containing high sulfur concentration and is not a reliable indicator of maturity for these kerogen types.
We can use the general guidelines for maturation levels given below for [[Rock-Eval pyrolysis]] T<sub>max</sub> for [[Kerogen types|types II and III kerogens]]. Different pyrolysis techniques have different cutoffs for pyrolysis oil and gas generation zone boundaries. Pyrolysis T<sub>max</sub> can be significantly different for type I kerogen<ref name=ch06r13>Tissot, B., P., Pelet, R., Ungerer, P., 1987, [http://archives.datapages.com/data/bulletns/1986-87/data/pg/0071/0012/1400/1445.htm Thermal history of sedimentary basins, maturation indices, and kinetics of oil and gas generation]: AAPG Bulletin, vol. 71, p. 1445–1466. Excellent review of the relationships between maturation indicators and hydrocarbon generation from kerogens.</ref> or kerogen containing high sulfur concentration and is not a reliable indicator of maturity for these kerogen types.
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{| class = "wikitable"