VOSviewer
Courses
- SIGPStable Isotope Geochemistry and Paleoclimate
- QGQuaternary Geochronology
- IGIntroduction to Geochemistry
- TCEBThe Coevolution of Earth and the Biosphere
- PGPhysical Geology
- GFCGeology Field Camp
Grants
- Developing Quantitative Methods to Address Sediment Modification
Principal Investigator (PI)
2021
$182.1K
Active - Are Remnants Of The Tibetan Plateau Preserved In the Southern Himalayan Thrust Belt
Co-Investigator (COI)
2018
$521.2K
Active - Collaborative Research: Improving and Calibrating A Tunable Infrared Laser Direct Absorption Spectroscopy (TILDAS) System For Clumped Isotope Analysis Of CO2
Co-Investigator (COI)
2020
$449.3K
- Collaborative Research: Developing of Tunable Infrared Laser Direct Absorption Spectroscopy (TILDAS) for Clumped Isotope Analysis of CO2
Co-Investigator (COI)
2017
$299.2K
- Collaborative Research: Quantifying Precipitation Changes in the South American Subtropics Over the Late Pleistocenee
Principal Investigator (PI)
2017
$87.5K
- Collaborative Research: Field Research at the Hominin-bearing Pliocene-aged Galili Formation
Principal Investigator (PI)
2016
$43.5K
- First 10Be Production Rate Calibration in Tibet at >4500 m from Lunggar Rift Landslide, Wavecut Bedrock and Beach Pebbles from Well-Dated Lake Ngan...
Principal Investigator (PI)
2014
$26.3K
- Investigating Regional Pluvial Climate of teh Great Basin Using Geochronology, GIS Analysis, and Hydrologic Modeling of Pluvial Lakes
Principal Investigator (PI)
2013
$5.0K
- Collaborative Research: The suturing process: Insight from the India-Asia collision zone
Co-Investigator (COI)
2011
$1.9M
- Collaborative Research: Absolute-Dated Records of Late Quaternary Paleohydrology in the Bonneville Basin, Western U.S., from Novel Cave Archives
Principal Investigator (PI)
2011
$205.9K
News
- The Life and Death of One of America's Most Mysterious Trees
2020
- Ancient Pee Reveals Earliest Stages of Animal Domestication
2019
- UA Center Studies the Link Between Climate and Civilization
2015
- Asian Monsoon Much Older Than Previously Thought
2014
- Out of the Woods for 'Ardi'
2010
- New Homo Erectus Fossil Overturns Prior Thinking About Human Brain Evolution
2008
- UA College of Science Announces 2007 Galileo Circle Fellows
2007
- Not finding life? Dig deeper
2005
- Year in Review 2001: College of Science
2001
- Scientists Discover Where Ancient Builders at Chaco Canyon Got Their Wood
2001
- Ancient rodent middens record past tropical rain in "absolute" desert
2000
- Scientists Find Long History of Tropical Monsoon in World's Driest Desert
2000
Publications (145)
Recent
- Megalakes in the Sahara? A review.
2018
- Stable and clumped 18O and 13C isotope systematics and 14C geochronology of shoreline tufas and other terrestrial and lacustrine carbonates from the Chewaucan closed-basin lake system, northern Great Basin, USA: implications for paleoenvironmental reconstructions.
2017
- Lake-level stratigraphy and geochronology revisited at Lago (Lake) Cardiel, Argentina, and changes in the Southern Hemispheric Westerlies over the last 25 ka.
2017
- Evidence from paleosols for low to moderate elevation of the India-Asia suture zone during mid-Cenozoic time.
2017
- Isotopic Characterization of late Neogene travertine deposits at Barrancas Blancas in the eastern Atacama Desert, Chile.
2017
- Significant impacts of increasing aridity on the arid soil microbiome.
2017
- Late Miocene hominin teeth from the Gona Paleoanthropological Research Project Area, Afar, Ethiopia.
2015
- Mid-Holocene drying of the U.S. Great Basin recorded in Nevada speleothems.
2015
- Desert wetlands in the geologic record
2014
- A forager-herder trade-off, from broad-spectrum hunting to sheep management at Aşıklı Höyük, Turkey.
2014
- Cosmogenic nuclides in buried sediments from the hyperarid Atacama Desert, Chile
2014
- Radiocarbon dating of interdune paleo-wetland deposits to constrain the age of mid-to-late holocene microlithic artifacts from the zhongba site, Southwestern Qinghai-Tibet Plateau
2014
- The female Homo pelvis from Gona: Response to Ruff (2010)
2014
- Compositional and Isotopic Analytical Methods in Archaeological Micromorphology
2013
- Long-term east-west asymmetry in monsoon rainfall on the tibetan plateau: REPLY
2013
- The clumped isotope geothermometer in soil and paleosol carbonate
2013
- Long-term east-west asymmetry in monsoon rainfall on the Tibetan Plateau
2013
- Bomb-curve radiocarbon measurement of recent biologic tissues and applications to wildlife forensics and stable isotope (paleo)ecology
2013
- A 130ka reconstruction of rainfall on the Bolivian Altiplano
2013
- Life at the hyperarid margin: Novel bacterial diversity in arid soils of the Atacama Desert, Chile
2012
- Small mammal carbon isotope ecology across the Miocene-Pliocene boundary, northwestern Argentina
2012
- Stratigraphy and geochronology of La Playa archaeological site, Sonora, Mexico
2012
- Seismicity and the strange rubbing boulders of the Atacama desert, Northern Chile
2012
- Strontium isotopes and nutrient sourcing in a semi-arid woodland
2012
- Rodent middens reveal episodic, long-distance plant colonizations across the hyperarid Atacama Desert over the last 34,000 years
2012
- Lacustrine cave carbonates: Novel archives of paleohydrologic change in the Bonneville Basin (Utah, USA)
2012
- The sources and sinks of CO sub 2 /sub in caves under mixed woodland and grassland vegetation
2012
- Establishment and formation of fog-dependent Tillandsia landbeckii dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes
2011
- Widespread basement erosion during the late Paleocene-early Eocene in the laramide rocky mountains inferred from sup 87 /sup sr/ sup 86 /sup sr ratios of freshwater bivalve fossils
2011
- Widespread hillslope gullying on the southeastern Tibetan Plateau: Human or climate-change induced?
2011
- The paleoaltimetry of Tibet: An isotopic perspective
2011
- Oligocene-Miocene Kailas basin, southwestern Tibet: Record of postcollisional upper-plate extension in the Indus-Yarlung suture zone
2011
- Woody cover and hominin environments in the past 6-million years
2011
- Sedimentology, detrital zircon geochronology, and stable isotope geochemistry of the lower Eocene strata in the Wind River Basin, central Wyoming
2011
- Isotopic tracers of paleohydrologic change in large lakes of the Bolivian Altiplano
2011
- Chronostratigraphy and lake-level changes of Laguna Cari-Laufquén, Río Negro, Argentina
2011
- A simplified In Situ cosmogenic sup 14 /sup C extraction system
2010
- Climate-driven environmental change in the Zhada basin, southwestern Tibetan Plateau
2010
- Evidence for active landscape evolution in the hyperarid Atacama from multiple terrestrial cosmogenic nuclides
2010
- Extraction of in situ cosmogenic sup 14 /sup C from olivine
2010
- Comment on the paleoenvironment of ardipithecus ramidus
2010
- Geochemistry, chronology and stratigraphy of Neogene tuffs of the Central Andean region
2009
- The late Miocene through present paleoelevation history of southwestern Tibet
2009
- Climate in the dry central andes over geologic, millennial, and interannual timescales
2009
- Stable isotopic results from paleosol carbonate in South Asia: Paleoenvironmental reconstructions and selective alteration
2009
- Dryland hydrology in a warmer world: Lessons from the Last Glacial period
2009
- A Great Basin-wide dry episode during the first half of the Mystery Interval?
2009
- Magnetic polarity stratigraphy of the Neogene foreland basin deposits of Nepal
2009
- The geology of gona, afar, ethiopia
2008
- Paleowetlands and regional climate change in the central Atacama Desert, northern Chile
2008
- A female Homo erectus pelvis from gona, Ethiopia
2008
- Herbivore enamel carbon isotopic composition and the environmental context of ardipithecus at Gona, Ethiopia
2008
- Composite tephrostratigraphy of the Dikika, Gona, Hadar, and Ledi-Geraru project areas, northern Awash, Ethiopia
2008
- Stratigraphy and geochronology of the late miocene adu-asa formation at gona, ethiopia
2008
- Soils at the hyperarid margin: The isotopic composition of soil carbonate from the Atacama Desert, Northern Chile
2007
- The structure and rate of late Miocene expansion of C sub 4 /sub plants: Evidence from lateral variation in stable isotopes in paleosols of the Siwalik Group, northern Pakistan
2007
- Paleolimnological evidence for the onset and termination of glacial aridity from Lake Tanganyika, Tropical East Africa
2007
- Stable isotopic composition of pedogenic carbonates from the eastern margin of the Thar Desert, Rajasthan, India
2007
- High and dry in central Tibet during the Late Oligocene
2007
- Paleoelevation reconstruction using pedogenic carbonates
2007
- Development of low-background vacuum extraction and graphitization systems for sup 14 /sup C dating of old (40-60 ka) samples
2007
- Paleoclimate and human evolution workshop
2006
- Bacterial community structure in the hyperarid core of the Atacama Desert, Chile
2006
- Geochronology and stratigraphy of late Pleistocene lake cycles on the southern Bolivian Altiplano: Implications for causes of tropical climate change
2006
- Strategies for successful U-Th dating of paleolake carbonates: An example from the Bolivian Altiplano
2006
- sup 87 /sup Sr/ sup 86 /sup Sr sourcing of ponderosa pine used in Anasazi great house construction at Chaco Canyon, New Mexico
2005
- Raw material selectivity of the earliest stone toolmakers at Gona, Afar, Ethiopia
2005
- Early Pliocene hominids from Gona, Ethiopa
2005
- Isotopic variability in the aragonite shells of freshwater gastropods living in springs with nearly constant temperature and isotopic composition
2005
- The sup 87 /sup Sr/ sup 86 /sup Sr ratios of lacustrine carbonates and lake-level history of the Bonneville paleolake system
2004
- Paleoenvironments of the earliest stone toolmakers, Gona, Ethiopia
2004
- Isotopic evidence for Plio-Pleistocene environmental change at Gona, Ethiopia
2004
- Radiocarbon dating of minute gastropods and new constraints on the timing of late Quaternary spring-discharge deposits in southern Arizona, USA
2004
- Microbial life in the Atacama Desert [2] (multiple letters)
2004
- Landscape patterns of vegetation change indicated by soil carbon isotope composition
2004
- Re-evaluation of mid-Holocene deposits at Quebrada Puripica, northern Chile
2003
- Isotopic records from ground-water and cave speleothem calcite in North America
2003
- Silicate versus carbonate weathering in the Himalaya: A comparison of the Arun and Seti River watersheds
2003
- 2.6-Million-year-old stone tools and associated bones from OGS-6 and OGS-7, Gona, Afar, Ethiopia
2003
- Late Quaternary paleohydrologic and paleotemperature change in southern Nevada
2003
- A vegetation history from the arid prepuna of northern Chile (22-23°S) over the last 13 500 years
2003
- Isotopic evidence for the source of Ca and S in soil gypsum, anhydrite and calcite in the Atacama Desert, Chile
2003
- Late Quaternary paleohydrology of the central Atacama Desert (lat 22°-24°S), Chile
2002
- Vegetation invasions into absolute desert: A 45 000 yr rodent midden record from the Calama-Salar de Atacama basins, northern Chile (lat 22°-24°S)
2002
- δ sup 13 /sup C values of soil organic matter in semiarid grassland with mesquite (Prosopis) encroachment in southeastem Arizona
2002
- Sourcing sediment using multiple tracers in the catchment of Lake Argyle, Northwestern Australia
2002
- Desert pavements and associated rock varnish in the Mojave Desert: How old can they be?
2002
- Measurement of ancient cosmogenic sup 21 /sup Ne in quartz from the 28 Ma Fish Canyon Tuff, Colorado
2002
- Tracing spatial and temporal variations in the sources of calcium in pedogenic carbonates in a semiarid environment
2002
- Magnetic polarity stratigraphy of foreland basin sediments of Nepal Himalaya
2001
- Holocene vegetation history from fossil rodent middens near Arequipa, Peru
2001
- Late Quaternary environmental change in the Bonneville basin, western USA
2001
- Holocene lake-level fluctuations of Lake Aricota, Southern Peru
2001
- Seasonale stable isotope evidence for a strong Asian monsoon throughout the past 10.7 m.y
2001
- Stratigraphy, structure, and tectonic evolution of the Himalayan fold-thrust belt in Western Nepal
2001
- Strontium isotopes reveal distant sources of architectural timber in Chaco Canyon, New Mexico
2001
- A new extraction technique and production rate estimate for in situ cosmognic sup 14 /sup C in quartz
2001
- Predicting paleoelevation of Tibet and the Himalaya from δ sup 18 /sup O vs. altitude gradients in meteoric water across the Nepal Himalaya
2000
- Fish remains from Homestead Cave and lake levels of the past 13,000 years in the Bonneville basin
2000
- The Os and Sr isotopic record of Himalayan paleorivers: Himalayan tectonics and influence on ocean chemistry
2000
- Magnetic polarity stratigraphy of the Neogene Siwalik Group at Khutia Khola, far western Nepal
2000
- Palynological evidence for vegetation development and climatic change in the Sub-Himalayan Zone (Neogene, Central Nepal)
2000
- Isotopic evidence for eolian recycling of pedogenic carbonate and variations in carbonate dust sources throughout the southwest United States
2000
- Tectonic implications of U-Pb zircon ages of the Himalayan orogenic belt in Nepal
2000
- High times on the Tibetan Plateau: Paleoelevation of the Thakkhola graben, Nepal
2000
- A 22,000-year record of monsoonal precipitation from northern chile's atacama desert
2000
- Geologic control of Sr and major element chemistry in Himalayan Rivers, Nepal
2000
- The stable-isotope composition of early ground-water cements from sandstone in paleoecological reconstruction
1999
- Black Mats, Spring-Fed Streams, and Late-Glacial-Age Recharge in the Southern Great Basin
1998
- Late Pleistocene C sub 4 /sub plant dominance and summer rainfall in the southwestern United States from isotopic study of herbivore teeth
1998
- Miocene/pliocene shift: One step or several? [2]
1998
- Reconstructing cave bear paleoecology from skeletons: A cross-disciplinary study of middle Pleistocene bears from Yarimburgaz Cave, Turkey
1998
- Eocene-early Miocene foreland basin development and the history of Himalayan thrusting, western and central Nepal
1998
- The vesicular layer and carbonate collars of desert soils and pavements: formation, age and relation to climate change
1998
- Neogene foreland basin deposits, erosional unroofing, and the kinematic history of the Himalayan fold-thrust belt, western Nepal
1998
- Quaternary history of the Thatcher Basin, Idaho, reconstructed from the sup 87 /sup Sr/ sup 86 /sup Sr and amino acid composition of lacustrine fossils: Implications for the diversion of the Bear River into the Bonneville Basin
1998
- The late neogene sup 87 /sup Sr/ sup 86 /sup Sr record of lowland himalayan rivers
1997
- Global vegetation change through the Miocene/Pliocene boundary
1997
- Reliable Late-Pleistocene Stratigraphic Ages and Shorter Groundwater Travel Times from sup 14 /sup C in Fossil Snails from the Southern Great Basin
1997
- The expansion of C sub 4 /sub grasses and global change in the late Miocene: Stable isotope evidence from the Americas
1997
- Holocene palaeoecology of the northern Flinders Ranges, South Australia, based on stick-nest rat (Leporillus spp.) middens: A preliminary overview
1996
- Strontium and carbon isotope tracers and the origins of soil carbonate in South Australia and Victoria
1995
- Fossil spring deposits in the southern great basin and their implications for changes in water-table levels near Yucca Mountain, Nevada, during quaternary time
1995
- Radiocarbon dating of fossil mollusk shells in the Yucca Mountain Region
1995
- Floodplains and paleosols of Pakistan Neogene and Wyoming Paleogene deposits: a comparative study
1995
- Late Miocene environmental change in Nepal and the northern Indian subcontinent: stable isotopic evidence from paleosols
1995
- Expansion of C sub 4 /sub grasses in the Late Miocene of Northern Pakistan: evidence from stable isotopes in paleosols
1995
- Paleodietary reconstruction of Miocene faunas from Paşalar, Turkey using stable carbon and oxygen isotopes of fossil tooth enamel
1995
- Studies of the production rate of cosmic-ray produced sup 14 /sup C in rock surfaces
1994
- Expansion and emergence of C4 plants [10]
1994
- Stable isotopic evidence from paleosol carbonates and fossil teeth in Greece for forest or woodlands over the past 11 Ma
1994
- The carbon isotope composition of organic matter occluded in iron nodules
1994
- Expansion of C4 ecosystems as an indicator of global ecological change in the late Miocene
1993
- A 16-Ma record of paleodiet using carbon and oxygen isotopes in fossil teeth from Pakistan
1992
- Reply to comment on the Paleoenvironment of Kenyapithecus at Fort Ternan
1992
- Fossil soils, grasses, and carbon isotopes from Fort Ternan, Kenya: grassland or woodland?
1991
- On the isotopic composition of carbon in soil carbon dioxide
1991
- Global ecologic and climatic change during the Neogene: Stable isotopic evidence from soils
1990
- Stable isotopic evidence for a pedogenic origin of carbonates in trench 14 near Yucca Mountain, Nevada
1990
- Late Wisconsin groundwater discharge environments of the southwestern Indian Springs Valley, southern Nevada
1989
- Systematic variations in the carbon and oxygen isotopic composition of pedogenic carbonate along elevation transects in the southern Great Basin, United States
1989
- Development of Asian monsoon revealed by marked ecological shift during the latest Miocene in northern Pakistan
1989
- Carbon isotopes in soils and palaeosols as ecology and palaeoecology indicators
1989
- Late quaternary environmental changes in the upper Las Vegas valley, Nevada
1986
- ESTIMATING CLIMATE CHANGE FROM HYDROLOGIC RESPONSE.
1986