• Publications
  • Influence
UWG-2, a garnet standard for oxygen isotope ratios: Strategies for high precision and accuracy with laser heating
UWG-2 is a new garnet standard for oxygen isotope analysis prepared from a single large porphyroblast that was homogeneous (±0.21‰) at the millimeter-scale before grinding. The δ 18O value of UWG-2Expand
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Carbon isotope compositions of terrestrial C3 plants as indicators of (paleo)ecology and (paleo)climate
  • M. Kohn
  • Environmental Science, Medicine
  • Proceedings of the National Academy of Sciences
  • 1 November 2010
A broad compilation of modern carbon isotope compositions in all C3 plant types shows a monotonic increase in δ13C with decreasing mean annual precipitation (MAP) that differs from previous models.Expand
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P -T paths from anatectic pelites
Abstract A relatively simple petrogenetic grid for partial melting of pelitic rocks in the NCKFMASH system is presented based on the assumption that the only H2O available for melting is throughExpand
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Predicting animal δ18O: Accounting for diet and physiological adaptation
  • M. Kohn
  • Environmental Science
  • 1 December 1996
Abstract Theoretical predictions and measured isotope variations indicate that diet and physiological adaptation have a significant impact on animals δ18O and cannot be ignored. A generalized modelExpand
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Stable isotope compositions of biological apatite
The stable isotope compositions of biogenic materials record a combination of environmental parameters and biological processes. In general, the environment provides a range of isotopic compositionalExpand
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Two new geobarometers for garnet amphibolites, with applications to southeastern Vermont
Two new geobarometers for the assemblage garnet + hornblende + plagioclase + quartz have been calibrated on the basis of the equilibrium 6 Anorthite + 3 Tremolite = 2 Grossular + 1 Pyrope + 3Expand
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Geochronologic and thermobarometric constraints on the evolution of the Main Central Thrust, central Nepal Himalaya
The Main Central Thrust (MCT) juxtaposes the high-grade Greater Himalayan Crystallines over the lower-grade Lesser Himalaya Formation; an apparent inverted metamorphic sequence characterizes theExpand
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Seasonal stable isotope evidence for a strong Asian monsoon throughout the past 10.7 m.y
O of wet-season rainfall was significantly morenegative (29.5‰ SMOW) prior to 7.5 Ma than after ( 26.5‰SMOW). If this change is attributable to a lessening of the amounteffect in rainfall, this agreesExpand
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Large temperature drop across the Eocene–Oligocene transition in central North America
The Eocene–Oligocene transition towards a cool climate (∼33.5 million years ago) was one of the most pronounced climate events during the Cenozoic era. The marine record of this transition has beenExpand
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A New Chronology for Middle Eocene-Early Miocene South American Land Mammal Ages
Cenozoic South American Land Mam- mal Ages (SALMAs) have historically been correlated to the geologic time scale using 40 Ar/ 39 Ar dating and magnetostratigraphy. At Gran Barranca (68.7°W,Expand
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