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Graduate
Students:
Publications:
Hoffman,
D.L., L. Krupp, D. Schrag, G. Nilaver,
G. Valiquette, M.M. Kilcoyne, and E.A.
Zimmerman. Angiotensin immunoreactivity
in vasopressin cells in rat hypothalamus
and its relative deficiency in homozygous
Brattleboro rat. Ann. New York Acad.
Sci., 394, 135-141, 1982. View PDF
Schrag, D.P., D.J. DePaolo, and F.M. Richter.
Oxygen isotope exchange in a two-layer
model of oceanic crust. Earth Planet.
Sci. Lett., 111 (2-4), 305-317, 1992. View PDF
Schrag, D.P. and D.J. DePaolo. Determination
of d18O of seawater in the deep ocean
during the last glacial maximum. Paleoceanography,
8 (1), 1-6, 1993. View PDF
Schrag, D.P., D. J. DePaolo, and F. M.
Richter. Reconstructing past sea surface
temperatures: Correcting for diagenesis
of bulk marine carbonate. Geochim.
Cosmochim. Acta, 59 (11), 2265-2278,
1995. View PDF
Stoll, H.M. and D.P. Schrag. Glacial control
of rapid sea level changes in the Early
Cretaceous. Science, 272, 1771-1774,
1996. View PDF
Schrag, D.P., G. Hampt, and D.W. Murray.
Pore fluid constraints on the temperature
and oxygen isotopic composition of the
glacial ocean. Science, 272, 1930-1932,
1996. View PDF
Moore, M.D., D.P. Schrag, and M. Kashgarian.
Radiocarbon constraints on the source
Indonesian seaway from coral AMS measurements.
JGR-Oceans, 102, 12359-12365, 1997. View PDF
Rodgers, K.B., M.A. Cane, and D.P. Schrag.
Seasonal variability of sea surface ?14C
in the equatorial Pacific in an ocean
circulation model. JGR-Oceans,
102, 18627-18639, 1997. View PDF
Schrag, D.P., G. Hampt, and D.W. Murray.
Oxygen isotopic composition of interstitial
waters from ODP Leg 154: Determination
of the temperature and isotopic composition
of the glacial ocean, in Proc. ODP,
Sci. Results 154, edited by N.J. Shackleton,
W.B. Curry, C. Richter, and T.J. Bralower,
Ocean Drilling Program, College Station,
TX, 1997. View PDF
Gieskes, J.M., D.P. Schrag, L.-H. Chan,
L. Zhang, and J. Murray. Geochemistry
of interstitial waters, ODP Leg 152, in
Proc. ODP, Sci. Results 152, edited
by A.D. Saunders, H.C. Larsen, and S.W.
Wise, Jr., Ocean Drilling Program, College
Station, TX, 1998. View PDF
Stoll, H.M. and D.P. Schrag. Effect of
quaternary sea level cycles on the Sr
concentration of seawater. Geochim.
Cosmochim. Acta, 62 (7), 1107-1118,
1998. View PDF
Guilderson, T.P. and D.P. Schrag. Abrupt
shift in subsurface temperatures in the
Eastern Tropical Pacific associated with
recent changes in El Niño. Science,
281, 240-243, 1998. View PDF
Hoffman, P.F., A.J. Kaufman, G.P. Galverson,
and D.P. Schrag. A Neoproterozoic Snowball
Earth. Science, 281, 1342-1346,
1998. View PDF
Guilderson, T.P., D.P. Schrag, M. Kashgarian,
and J. Southon. Radiocarbon variability
in the western equatorial Pacific inferred
from a high-resolution coral record from
Nauru Island. JGR-Oceans, 103,
24641-24650, 1998. View PDF
Schrag, D.P. Rapid determination of high-precision
Sr/Ca ratios in corals and other marine
carbonates. Paleoceanography, 14
(2), 97-102, 1999. View PDF
Guilderson,T.P. and D.P. Schrag. Reliability
of coral isotope records from the western
Pacific warm pool: A comparison using
age-optimized records. Paleoceanography,
14 (4), 457-464, 1999. View PDF
Rodgers, K.B., M.A. Cane, N.H. Naik, and
D.P. Schrag. The role of the Indonesian
Throughflow in equatorial Pacific thermocline
ventilation. JGR-Oceans, 104, 20551-20570,
1999. View PDF
Schrag, D.P. Effects of diagenesis on
isotopic record of late Paleogene equatorial
sea surface temperatures. Chem. Geol.,
161 (1-3), 215-224, 1999. View PDF
Stoll, H.M., D.P. Schrag, and S. Clemens.
Are seawater Sr/Ca variations preserved
in Quaternary foraminifera? Geochim.
Cosmochim. Acta, 63 (21), 3535-3547,
1999. View PDF
Hughen, K.A., D.P. Schrag, S.B. Jacobsen,
and W. Hantoro. El Niño during
the last Interglacial recorded by fossil
corals from Indonesia. Geophys. Res.
Lett., 26 (20), 3129-3132, 1999. View PDF
Hoffman, P.F. and D.P. Schrag. Response
to comment by N. Christie-Blick, L. E.
Sohl and M. J. Kennedy. Science,
284, 1087, 1999. View PDF
Hoffman, P.F. and D.P. Schrag. The Snowball
Earth. Sci. Am., 282 (1), 68-75,
1999. View PDF
Billups, K. and D.P. Schrag. Surface ocean
density gradients during the Last Glacial
Maximum. Paleoceanography, 15 (1),
110-123, 2000. View PDF
Stoll, H.M. and D.P. Schrag. High resolution
stable isotope records from the Upper
Cretaceous of Italy and Spain: Glacial
episodes in a greenhouse planet? Geol.
Soc. Amer. Bull., 112 (2), 308-319,
2000. View PDF
Gagan, M.K., L.K. Ayliffe, J.W. Beck,
J.E. Cole, E.R.M. Druffel, R.B. Dunbar,
and D.P. Schrag. New views of tropical
paleoclimates from corals. Quat. Sci.
Rev., 19 (1-5), 45-64, 2000. View PDF
Schrag, D.P. Of ice and elephants. Nature,
404, 23-24, 2000. View PDF
Eshel, G., D.P. Schrag, and B. F. Farrell.
Troposphere - planetary boundary layer
interactions and the evolution of surface
density: Lessons from Red Sea corals.
J. Climate, 13 (2), 339-351, 2000. View PDF
Stoll, H.M. and D.P. Schrag. Coccolith
Sr/Ca as a new indicator of coccolithophorid
calcification and growth rate. Geochem.
Geophys. Geosyst., 1, Paper # 1999GC000015,
2000. View PDF
Rodgers, K.B., D.P. Schrag, M.A. Cane,
and N.H. Naik. The bomb 14C transient
in the Pacific ocean. JGR-Oceans,
105, 8489-8512, 2000. View PDF
Guilderson, T.P., D.P. Schrag, E.A. Goddard,
M. Kashgarian, G.M. Wellington, and B.K.
Linsley. Southwest subtropical Pacific
surface water radiocarbon in a high-resolution
coral record. Radiocarbon, 42 (2),
249-256, 2000. View PDF
O'Brien, D.M., D.P. Schrag, and C. Martinez
Del-Rio. Allocation to reproduction in
a hawkmoth: A quantitative analysis using
stable carbon isotopes. Ecology,
81 (10), 2822-2831, 2000. View PDF
Linsley, B.K., G.M. Wellington, and D.P.
Schrag. Decadal sea surface temperature
variability in the sub-tropical South
Pacific (1726 to 1997 A.D.). Science,
290, 1145-1148, 2000. View PDF
Adkins, J.F. and D.P. Schrag. Pore fluid
constraints on deep ocean temperature
and salinity during the Last Glacial Maximum.
Geophys. Res. Lett., 28 (5), 771-774,
2001. View PDF
Stoll, H.M. and D.P. Schrag. Sr/Ca variations
in Cretaceous carbonates: Relation to
productivity and sea level changes. Palaeogeogr.
Palaeoclimatol. Palaeoecol., 168 (3-4),
311-336, 2001. View PDF
Schrag, D.P. and P.F. Hoffman. Life, geology
and Snowball Earth. Nature, 409,
306, 2001. View PDF
Druffel, E.R., S. Griffin, T.P. Guilderson,
M. Kashgarian, J. Southon, and D.P. Schrag.
Changes in subtropical North Pacific radiocarbon
and their correlation with climate variability.
Radiocarbon, 43 (1), 15-25, 2001. View PDF
Evans, M.N., M.A. Cane, D.P. Schrag, A.
Kaplan, B.K. Linsley, R. Villalba, and
G.M. Wellington. Support for tropically-driven
Pacific decadal variability based on paleoproxy
evidence. Geophys. Res. Lett.,
28 (19), 3689-3692, 2001. View PDF
Schrag, D.P. and B.K. Linsley. Paleoclimate:
Corals, chemistry, and climate. Science,
296, 277-278, 2002. View PDF
Schrag, D.P., J.F. Adkins, K. McIntyre,
J.L. Alexander, D.A. Hodell, C.D. Charles,
and J.F. McManus. The oxygen isotopic
composition of seawater during the Last
Glacial Maximum. Quat. Sci. Rev.,
21 (1-3), 331-342, 2002. View PDF
Milne, G.A., J.X. Mitrovica, and D.P.
Schrag. Estimating past continental ice
volume from sea-level data. Quat. Sci.
Rev., 21 (1-3), 361-376, 2002. View PDF
Billups, K. and D.P. Schrag. Paleotemperatures
and ice-volume of the past 27 Myr revisited
with paired Mg/Ca and 18O/16O measurements
on benthic foraminifera. Paleoceanography,
17 (1), 3-1 - 3-11, 2002. View PDF
Kirk-Davidoff, D.B., D.P. Schrag, and
J.G. Anderson. On the feedback of stratospheric
clouds on polar climate. Geophys. Res.
Lett., 10, 1029-1032, 2002. View PDF
Hoffman, P.F. and D.P. Schrag. The Snowball
Earth hypothesis: Testing the limits of
global change. Terra Nova, 14 (3),
129-155, 2002. View PDF
Rickaby, R.E.M. and D.P. Schrag. Growth
rate dependence of Sr incorporation during
calcification of Emiliania huxleyi. Global
Biogeochem. Cycles, 16, No.1, 10.1029/2001GB001408,
2002. View PDF
Schrag, D.P. and J.J. McCarthy. Biological-physical
interactions and global climate change:
Some lessons from Earth history, in
The Sea, vol. 12, edited by Allan
R. Robinson, James J. McCarthy, and Brian
J. Rothschild, John Wiley & Sons,
Inc., New York, 605-619, 2002. View PDF
Halverson, G.P., P.F. Hoffman, D.P. Schrag,
and A.J. Kaufman. A major perturbation
of the carbon cycle before the Ghaub glaciation
(Neoproterozoic) in Namibia: Prelude to
Snowball Earth? Geochem. Geophys. Geosyst.,
10, Paper #1029/2001GC000244, 2002. View PDF
Schrag, D.P., R.A. Berner, P.F. Hoffman,
and G.P. Halverson. On the initiation
of a Snowball Earth. Geochem. Geophys.
Geosyst., 10, Paper #1029/2001GC000219,
2002. View PDF
Bard, E., G. Delaygue, F. Rostek, F. Antonioli,
S. Silenzi, and D.P. Schrag. Hydrological
conditions over the western Mediterranean
basin during the deposition of the cold
Sapropel 6 (ca. 175 kyr BP). Earth
Planet. Sci. Lett., 202 (2), 481-494,
2002. View PDF
Adkins, J.F., K. McIntyre, and D.P. Schrag.
The salinity, temperature, and d18O of
the glacial deep ocean. Science,
298, 1769-1773, 2002. View PDF
Cochran, J.K., N.H. Landman, K.K. Turekian,
A.Michard, and D.P. Schrag. Paleoceanography
of the Late Cretaceous (Maastrichtian)
Western Interior Seaway of North America:
Evidence from Sr and O isotopes. Palaeogeogr.
Palaeoclimatol. Palaeoecol., 191 (1),
45-64, 2003. View PDF
Ren, L., B.K. Linsley, G.M. Wellington,
D.P. Schrag, and O. Hoegh-Guldberg. Deconvolving
the d18Oseawater component from subseasonal
coral d18O and Sr/Ca at Rarotonga in the
Southwestern Subtropical Pacific for the
period 1726-1997. Geochim. Cosmochim.
Acta, 67 (9), 1609-1621, 2003. View PDF
Winter, A., A. Paul, J. Nyberg, T. Oba,
J. Lundberg, D. Schrag, and B. Taggart.
Orbital control of low-latitude seasonality
during the Eemian. Geophys. Res. Lett.,
30 (4), Art. No. 1163, 2003. View PDF
Higgins, J.A. and D.P. Schrag. Aftermath
of a Snowball Earth. Geochem. Geophys.
Geosyst., 4, Art. No. 1028, 2003. View PDF
Adkins, J.F. and D.P. Schrag. Reconstructing
Last Glacial Maximum bottom water salinities
from deep-sea sediment pore fluid profiles.
Earth Planet. Sci. Lett., 216 (1-2),
109-123, 2003. View PDF
Patt, A.G. and D.P. Schrag. Using specific
language to describe risk and probability.
Clim. Change, 61 (1-2), 17-30,
2003. View PDF
Billups, K. and D.P. Schrag. Application
of foraminiferal Mg/Ca ratios to questions
of Cenozoic climate change. Earth Planet.
Sci. Lett., 209 (1-2), 181-195, 2003. View PDF
Payne, J.L., D.J. Lehrmann, J.Y. Wei,
M.J. Orchard, D.P Schrag, and A.H. Knoll.
Large perturbations of the carbon cycle
during recovery from the end-Permian extinction.
Science, 305, 506-509, 2004. View PDF
Linsley, B.K., G.M. Wellington, D.P Schrag,
L. Ren, M.J. Salinger, and A.W. Tudhope.
Geochemical evidence from corals for changes
in the amplitude and spatial pattern of
South Pacific interdecadal climate variability
over the last 300 years. Clim. Dyn.,
22 (1), 1-11, 2004. View PDF
Turchyn, A.V. and D.P Schrag. Oxygen isotope
constraints on the sulfur cycle over the
past 10 million years. Science,
303, 2004-2007, 2004. View PDF
Guilderson, T., D. P. Schrag, and M.A.
Crane. Surface water mixing in the Solomon
Sea as documented by a high-resolution
coral 14C record. J. Climate, 17
(5), 1147-1156, 2004. View PDF
Evans, M.N. and D.P Schrag. A stable isotope-based
approach to tropical dendroclimatology.
Geochim. Cosmochim. Acta, 68 (16),
3295-3305, 2004. View PDF
Scott, K.M., J. Schwedock, D.P. Schrag,
and C.M. Cavanaugh. Influence of Form
IA RubisCO and environmental dissolved
inorganic carbon on the 13C of the clam-chemoautotroph
symbiosis Solemya Velum. Environ. Microbiol.,
6 (12), 1210-1219, 2004. View PDF
Schrag, D.P. and R.B. Alley. Ancient lessons
for our future climate. Science,
306, 821-822, 2004. View PDF
Rodgers, K.B., O. Aumont, G. Madec, C.
Menkes, B. Blanke, P. Monfray, J.C. Orr,
and D.P. Schrag. Radiocarbon as a thermocline
proxy for the eastern equatorial Pacific.
Geophys. Res. Lett., 31 (14), Art.
No. L14314, 2004. View PDF
Billups, K., R.E.M. Rickaby, and D.P.
Schrag. Cenozoic pelagic Sr/Ca records:
Exploring a link to paleoproductivity.
Paleoceanography, 19 (3), Art.
No. PA3005, 2004. View PDF
Poussart, P.F., M.N. Evans, and D.P. Schrag.
Resolving seasonality in tropical trees:
multi-decade, high-resolution oxygen and
carbon isotope records from Indonesia
and Thailand. Earth Planet. Sci. Lett.,
218 (3-4), 301-316, 2004. View PDF
Moore, T.S., R.W. Murray, A.C. Kurtz,
and D,P. Schrag. Anaerobic methane oxidation
and the formation of dolomite. Earth
Planet. Sci. Lett., 229 (1-2), 141-154,
2004. View PDF
Poussart, P.F. and D.P. Schrag. Seasonally
resolved stable isotope chronologies from
northern Thailand deciduous trees. Earth
Planet. Sci. Lett., 235 (3-4), 752-765,
2005. View PDF
Halverson, G.P., P.F. Hoffman, D.P. Schrag,
A.C. Maloof, and A.H.N. Rice. Toward a
Neoproterozoic composite carbon-isotope
record. GSA Bulletin, 117 (9-10),
1181-1207, Sep-Oct 2005. View PDF
Li, C., D.S. Battisti, D.P. Schrag, and
E. Tziperman. Abrupt climate shifts in
Greenland due to displacements of the
sea ice edge. Geophys. Res. Lett.,
32 (19), Art. No. L19702, 2005. View PDF
Maloof, A.C., D.P. Schrag, J.L. Crowley,
and S.A. Bowring. An expanded record of
Early Cambrian carbon cycling from the
Anti-Atlas Margin, Morocco. Can. J.
Earth Sci., 42, 2195-2216, 2005. View PDF
Turchyn, A.V. and D.P. Schrag. Cenozoic
Evolution of the Sulfur Cycle; Insight
from Oxygen Isotopes in Marine Sulfate.
Earth Planet. Sci. Lett., 241,
769-779, 2006. View PDF
Biddle, J.F., J.S. Lipp, M.A. Lever, K.G.
Lloyd, K.B. Sorensen, R. Anderson, H.F.
Fredricks, M. Elvert, T.J. Kelly, D.P.
Schrag, M.L. Sogin, J.E. Brenchley, A.
Teske, C.H. House, and K-U Hinricks. Heterotrophic
Archaea dominate sedimentary subsurface
ecosystems off Peru. Proc. Natl. Acad.
Sci. U.S.A., 103 (10), 3846-3851,
March 7, 2006. View PDF
Ghosh, P., J. Adkins, H. Affeck, B. Balta,
W. Guo, E.A. Schauble, D. Schrag, and
J.M. Eiler. 13C-18O bonds in carbonate
minerals: A new kind of Paleothermometer.
Geochim. Cosmochim. Acta, 70 (6),
1439-1456, March 15, 2006. View PDF
Musgrove, M. and D.P. Schrag. Climate
Change at Yucca Mountain: Lessons from
Earth History, in Uncertainty Underground:
Yucca Mountain and the Nation's High-Level
Nuclear Waste, edited by Allison M.
Macfarlane and Rodney C. Ewing, The MIT
Press, Cambridge, Massachusetts, 149-162,
2006. View PDF
Higgins, J.A. and D.P. Schrag. Beyond Methane:
Towards a Theory for Paleocene-Eocene Thermal Maximum.
Earth Planet. Sci. Lett., 245, 523-537, 2006.
View PDF
House, K.Z., D.P. Schrag, C.F. Harvey, and K.S. Lackner.
Permanent Carbon Dioxide Storage in Deep-Sea Sediments.
Proc. Natl. Acad. Sci. U.S.A., 103, 12291-12295, 2006.
View PDF
Maloof, A.C., G.P. Halverson, J.L. Kirschvink, D.P. Schrag, B.P. Weiss,
and P.F. Hoffman. Combined Paleomagnetic, Isotopic, and Stratigraphic
Evidence for True Polar Wander from the Neoproterozoic Akademikerbreen
Group, Svalbard, Norway. GSA Bulletin, 118, 1099-1124, 2006.
View PDF
Turchyn, A.V., O. Sivan, and D.P. Schrag. Oxygen Isotopic Composition of
Sulfate in Deep Sea Pore Fluid: Evidence for Rapid Sulfur Cycling. Geobiology,
4, 191-201, 2006.View PDF
Halverson, G.P., A.C. Maloof, D.P. Schrag, F.Ö. Dudás, and M. Hurtgen.
Stratigraphy and geochemistry of ca 800 Ma negative carbon isotope interval in northeastern
Svalbard . Chem. Geol., 237, 23-45, 2007.
View PDF
Schrag, D.P. Preparing to Capture Carbon. Science, 315, 812-813, 2007.
View PDF
Schrag, D.P. Confronting the Climate-Energy Challenge. Elements, 3, 171-178, 2007.
View PDF
Rickaby, R.E.M., Bard, E., Sonzogni, C., et al.
Coccolith Chemistry Reveals Secular Variations
in the Global Ocean Carbon Cycle. Earth Planet.
Sci. Lett., 253, 83-95, 2007. View PDF
Sivan, O., Schrag, D.P., Murray, R.W. Rates of
Methanogenesis and Methanogenesis and
Methanotrophy in Deep-sea Sediments.
Geobiology, 5(2):141-151, 2007. View PDF
Hoffman, P.F., Halverson, G.P., Domack, E.W.,
et al. Are basal Ediacraran (635 Ma)
post-glacial cap dolostones diachronous?
Earth and Plan. Sci. Lett.,
258(1-2):114-131, 2007. View PDF
Meister, P., Mckenzie, J.A., Vaconcelos, C.,
et al. Dolomite formation in the dynamic
deep biosphere: results from the Peru
Margin. Sedimentology, 54(5): 10007-1031, 2007. View PDF
Halevy, I., Zuber, M.T., Schrag, D.P. A
Sulfur Dioxide Climate Feedback on Early Mars.
Science 318(5858): 1903-1907, 2007. View PDF
House, K.Z., House, C.H, Schrag, D.P., Aziz, M.J.
Electrochemical acceleration of chemical weathering as an energetically feasible approach to mitigating anthropogenic climate change.
Environ. Sci. Technol., 41(24): 8464-8470, 2007. View PDF
Kevin J. Anchukaitis, Michael N. Evans,Todd Lange, David R. Smith,Steven W. Leavitt, and
Daniel P. Schrag. Consequences of a Rapid Cellulose Extraction
Technique for Oxygen Isotope and Radiocarbon
Analyses. Anal. Chem. 2008, 80, 2035-2041. View PDF
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