Search Results - "Trop, Jeffrey M."

Correction Factors for δ18O-Derived Global Sea Surface Temperature Reconstructions From Diagenetically Altered Intervals of Coral Skeletal Density Banding by Sivaguru, Mayandi, Fouke, Kyle W., Todorov, Lauren, Kingsford, Michael J., Fouke, Kaitlyn E., Trop, Jeffrey M., Fouke, Bruce W.

“…Reconstruction of sea surface temperature (SST) from the 18O and Sr/Ca composition of coral skeletal density banding (CSDB), identified with x-ray diffraction…”
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Cretaceous to Miocene magmatism, sedimentation, and exhumation within the Alaska Range suture zone; a polyphase reactivated terrane boundary by Trop, Jeffrey M, Benowitz, Jeff, Cole, Ronald B, O'Sullivan, Paul

“…The Alaska Range suture zone exposes Cretaceous to Quaternary marine and nonmarine sedimentary and volcanic rocks sandwiched between oceanic rocks of the…”
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Detrital Zircon Record of a Mesozoic Collisional Forearc Basin in South Central Alaska: The Tectonic Transition From an Oceanic to Continental Arc by Stevens Goddard, Andrea L., Trop, Jeffrey M., Ridgway, Kenneth D.

“…The collision of oceanic arcs with continental margins is an important mechanism for the growth of continents. Ancient forearc basin strata in collisional…”
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SEDIMENTOLOGY AND CARBON ISOTOPE (δ13C) STRATIGRAPHY OF SILURIAN–DEVONIAN BOUNDARY INTERVAL STRATA, APPALACHIAN BASIN (PENNSYLVANIA, USA) by Hess, Anya V, Trop, Jeffrey M

“…Silurian–Devonian boundary interval strata deposited during the expansion of land plants record a major perturbation of the carbon cycle, the global Klonk…”
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Detrital zircon geochronology and Hf isotope geochemistry of Mesozoic sedimentary basins in south-central Alaska; insights into regional sediment transport, basin development, and tectonics along the NW Cordilleran margin by Fasulo, Cooper R, Ridgway, Kenneth D, Trop, Jeffrey M

“…The Jurassic-Cretaceous Nutzotin, Wrangell Mountains, and Wellesly basins provide an archive of subduction and collisional processes along the southern Alaska…”
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Geochronology of the Wrangell Arc; spatial-temporal evolution of slab-edge magmatism along a flat-slab, subduction-transform transition, Alaska-Yukon by Trop, Jeffrey M, Benowitz, Jeff A, Kirby, Carl S, Brueseke, Matthew E

“…The Wrangell Arc in Alaska (USA) and adjacent volcanic fields in the Yukon provide a long-term record of interrelations between flat-slab subduction of the…”
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Geochemical and Stratigraphic Analysis of the Chisana Formation, Wrangellia Terrane, Eastern Alaska: Insights Into Early Cretaceous Magmatism and Tectonics Along the Northern Cordilleran Margin by Manselle, Patrick, Brueseke, Matthew E., Trop, Jeffrey M., Benowitz, Jeffrey A., Snyder, Darin C., Hart, William K.

“…The Chisana Formation consists of Lower Cretaceous volcanic rocks that occur in the Nutzotin Mountains of eastern Alaska. New stratigraphic analysis indicates…”
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Changes in Coral Skeleton Growth Recorded by Density Band Stratigraphy, Crystalline Structure, and Hiatuses by Fouke, Kyle W., Trop, Jeffrey M., Sivaguru, Mayandi

“…Next-generation high resolution brightfield microscopy, x-radiography, and microcomputed tomography (microCT) analyses indicate that coral skeleton high…”
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Stitch in the ditch; Nutzotin Mountains (Alaska) fluvial strata and a dike record ca. 117-114 Ma accretion of Wrangellia with western North America and initiation of the Totschunda Fault by Trop, Jeffrey M, Benowitz, Jeffrey A, Koepp, Donald Q, Sunderlin, David, Brueseke, Matthew E, Layer, Paul W, Fitzgerald, Paul G

“…The Nutzotin basin of eastern Alaska consists of Upper Jurassic through Lower Cretaceous siliciclastic sedimentary and volcanic rocks that depositionally…”
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Geomorphology of icy debris fans; delivery of ice and sediment to valley glaciers decoupled from icecaps by Kochel, R. Craig, Trop, Jeffrey M, Jacob, Robert W

“…The pace and volume of mass flow processes contributing ice and sediment to icy debris fans (IDFs) were documented at sites in Alaska and New Zealand by…”
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Geochemical and geochronological records of tectonic changes along a flat-slab arc-transform junction; circa 30 Ma to ca. 19 Ma Sonya Creek volcanic field, Wrangell Arc, Alaska by Berkelhammer, Samuel E, Brueseke, Matthew E, Benowitz, Jeffrey A, Trop, Jeffrey M, Davis, Kailyn, Layer, Paul W, Weber, Maridee

“…The Sonya Creek volcanic field (SCVF) contains the oldest in situ volcanic products in the ca. 30 Ma-modern Wrangell Arc (WA) in south-central Alaska, which…”
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The Alaska Wrangell Arc: ~30 Ma of subduction‐related magmatism along a still active arc‐transform junction by Brueseke, Matthew E., Benowitz, Jeffrey A., Trop, Jeffrey M., Davis, Kailyn N., Berkelhammer, Samuel E., Layer, Paul W., Morter, Bethany K.

“…The Oligocene to Present Wrangell Volcanic Belt (WVB) extends for ~500 km across south‐central Alaska (USA) into Canada at a volcanic arc‐transform junction…”
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Cenozoic tectono-thermal history of the southern Talkeetna Mountains, Alaska; insights into a potentially alternating convergent and transform plate margin by Terhune, Patrick J, Benowitz, Jeffrey A, Trop, Jeffrey M, O'Sullivan, Paul B, Gillis, Robert J, Freymueller, Jeffrey T

“…The Mesozoic-Cenozoic convergent margin history of southern Alaska has been dominated by arc magmatism, terrane accretion, strike-slip fault systems, and…”
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VERTEBRATE TAPHONOMY, PALEONTOLOGY, SEDIMENTOLOGY, AND PALYNOLOGY OF A FOSSILIFEROUS LATE DEVONIAN FLUVIAL SUCCESSION, CATSKILL FORMATION, NORTH-CENTRAL PENNSYLVANIA, USA by Broussard, David R., Treaster, Cayla J., Trop, Jeffrey M., Daeschler, Edward B., Zippi, Pierre A., Vrazo, Matthew B., Rygel, Michael C.

“…The fluvial facies of the Catskill Formation record important ecological events that occurred during Late Devonian time. A well-exposed section between the…”
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Upper plate proxies for flat-slab subduction processes in southern Alaska by Finzel, Emily S., Trop, Jeffrey M., Ridgway, Kenneth D., Enkelmann, Eva

“…The timing of initiation of flat-slab subduction beneath southern Alaska and the upper plate record of this process are not well understood. We explore the…”
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Active processes, morphology, and dynamics of icy debris fans: Landform evolution along rapidly degrading escarpments in alpine regions undergoing recent deglaciation by Kochel, R. Craig, Trop, Jeffrey M.

“…In the past few decades the impacts of climate warming have been significant in alpine glaciated regions. Many valley glaciers formerly linked as distributary…”
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A NEW EURYPTERID LAGERSTÄTTE FROM THE UPPER SILURIAN OF PENNSYLVANIA by VRAZO, MATTHEW B, TROP, JEFFREY M, BRETT, CARLTON E

“…Eurypterids are generally rare in the fossil record, but occasionally occur in abundance. The genus Eurypterus, in particular, is well known from certain upper…”
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Petrofacies and provenance of a Late Cretaceous suture zone thrust-top basin, Cantwell Basin, central Alaska Range by Trop, Jeffrey M, Ridgway, Kenneth D

“…The lower Cantwell Formation, in the Cantwell basin, provides an excellent opportunity to study the petrofacies and provenance of siliciclastic deposits from…”
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Earth analog for high-latitude landforms and recent flows on Mars: Icy debris fans in the Wrangell Volcanic Field, Alaska by Kochel, R. Craig, Trop, Jeffrey M.

“…New Mars Reconnaissance Orbiter HiRise and CRISM imagery of polar layered terrain of Mars reveals striking similarities to icy debris fans along the base of…”
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Subsurface architecture of alpine icy debris fans: Integration of ground-penetrating radar and surface observations in Alaska and New Zealand by Jacob, Robert W., Trop, Jeffrey M., Kochel, R. Craig

“…Icy debris fans (IDFs) are extremely dynamic supraglacial landforms at the mouths of bedrock catchments between valley glaciers and icecaps. Recent studies…”
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