TY - CHAP
T1 - Microprobe monazite geochronology
T2 - Understanding geologic processes by integrating composition and chronology
AU - Williams, Michael L.
AU - Jercinovic, Michael J.
AU - Hetherington, Callum J.
N1 - Funding Information:
The authors gratefully acknowledge the support of the Center for the Development of Nanoscience and Nanotechnology, CEDENNA FB0807 ? Line 6, DICYT 021543CM, USA 1498.04 and CORFO 13IDL2-18665.
PY - 2007
Y1 - 2007
N2 - Monazite is a light rare earth element (LREE)-bearing phosphate mineral that is present in a wide variety of rock types, has an extremely variable composition reflecting host rock conditions, and is a robust geochronometer that can preserve crystallization ages through a long history of geological events. Monazite crystals typically contain distinct compositional domains that represent successive generations of monazite, which in turn, can provide a detailed record of the geologic history of its host rocks. The electron microprobe can be used to characterize the geometry of compositional domains, analyze the composition of each domain, and, when carefully configured, determine the U-Th-total Pb age for domains as small as 5 μm in width. These data allow the monazite to be linked with, and place timing constraints on, silicate processes in the host rocks. Current applications span a broad range of geologic processes in igneous, metamorphic, hydrothermal, and sedimentary rocks.
AB - Monazite is a light rare earth element (LREE)-bearing phosphate mineral that is present in a wide variety of rock types, has an extremely variable composition reflecting host rock conditions, and is a robust geochronometer that can preserve crystallization ages through a long history of geological events. Monazite crystals typically contain distinct compositional domains that represent successive generations of monazite, which in turn, can provide a detailed record of the geologic history of its host rocks. The electron microprobe can be used to characterize the geometry of compositional domains, analyze the composition of each domain, and, when carefully configured, determine the U-Th-total Pb age for domains as small as 5 μm in width. These data allow the monazite to be linked with, and place timing constraints on, silicate processes in the host rocks. Current applications span a broad range of geologic processes in igneous, metamorphic, hydrothermal, and sedimentary rocks.
KW - Analytical methods
KW - Chemical reaction
KW - Crystal chemistry
KW - Deformation
KW - Electron microprobe
UR - http://www.scopus.com/inward/record.url?scp=34250671464&partnerID=8YFLogxK
U2 - 10.1146/annurev.earth.35.031306.140228
DO - 10.1146/annurev.earth.35.031306.140228
M3 - Chapter
AN - SCOPUS:34250671464
SN - 0824320352
SN - 9780824320355
T3 - Annual Review of Earth and Planetary Sciences
SP - 137
EP - 175
BT - Annual Review of Earth and Planetary Sciences
A2 - Jeanloz, Raymond
A2 - Albee, Arden
A2 - Burke, Kevin
A2 - Freeman, Katherine
ER -