Outputs (80)

Garnets from the Camafuca-Camazambo kimberlite (Angola) (2006)
Journal Article
Correia, E., & Laiginhas, F. (2006). Garnets from the Camafuca-Camazambo kimberlite (Angola). Anais da Academia Brasileira de Ciências, 78(2), 309-315. https://doi.org/10.1590/s0001-37652006000200010

This work presents a geochemical study of a set of garnets, selected by their colors, from the CamafucaCamazambo kimberlite, located on northeast Angola. Mantle-derived garnets were classified according to the scheme proposed by Grütter et al. (2004)... Read More about Garnets from the Camafuca-Camazambo kimberlite (Angola).

Older crust underlies Iceland (2006)
Journal Article
Foulger, G. (2006). Older crust underlies Iceland. Geophysical Journal International, 165(2), 672-676. https://doi.org/10.1111/j.1365-246x.2006.02941.x

The oldest rocks outcropping in northwest Iceland are ∼16 Myr old and in east Iceland ∼13 Myr. The full plate spreading rate in this region during the Cenozoic has been ∼2 cm a−1, and thus these rocks are expected to be separated by ∼290 km. They are... Read More about Older crust underlies Iceland.

A diode laser system for heating minerals for (U-Th)/He chronometry (2006)
Journal Article
Foeken, J., Stuart, F., Dobson, K., Persano, C., & Vilbert, D. (2006). A diode laser system for heating minerals for (U-Th)/He chronometry. Geochemistry, Geophysics, Geosystems, 7(4), Article Q04015. https://doi.org/10.1029/2005gc001190

We have developed a diode laser (25 W, 808 nm) system for He extraction from minerals for (U-Th)/He chronometry. The laser beam is delivered via a 600 μm fiber cable and focused using a binocular microscope. Temperatures necessary for He release from... Read More about A diode laser system for heating minerals for (U-Th)/He chronometry.

Carbon dioxide sources, sinks, and spatial variability in shallow temperate zone caves: Evidence from Ballynamintra Cave, Ireland (2006)
Journal Article
Baldini, J., Baldini, L., McDermott, F., & Clipson, N. (2006). Carbon dioxide sources, sinks, and spatial variability in shallow temperate zone caves: Evidence from Ballynamintra Cave, Ireland. Journal of cave and karst studies, 68(1), 4-11

Carbon dioxide concentrations in Ballynamintra Cave, S. Ireland, generally increase with distance from the entrance, but this trend is non-linear because physical constrictions and slope changes compartmentalize the cave into zones with distinct PCO2... Read More about Carbon dioxide sources, sinks, and spatial variability in shallow temperate zone caves: Evidence from Ballynamintra Cave, Ireland.

Isostatic response of the Alula-Fartak and Owen transforms in the Eastern Gulf of Aden and the adjoining Arabian Sea (2006)
Journal Article
Radhakrishna, M., & Searle, R. C. (2006). Isostatic response of the Alula-Fartak and Owen transforms in the Eastern Gulf of Aden and the adjoining Arabian Sea. Geophysical Journal International, 165(1), 62-72. https://doi.org/10.1111/j.1365-246x.2006.02886.x

The Alula Fartak and Owen transforms are the active parts of major fracture zones with a distinct topographic expression in the Eastern Gulf of Aden and the Arabian Sea respectively. While the Alula-Fartak transform offsets the Sheba Ridge by about 1... Read More about Isostatic response of the Alula-Fartak and Owen transforms in the Eastern Gulf of Aden and the adjoining Arabian Sea.

Evidence of diverse depletion and metasomatic events in harzburgite–lherzolite mantle xenoliths from the Iberian plate (Olot, NE Spain): Implications for lithosphere accretionary processes. (2006)
Journal Article
Bianchini, G., Beccaluva, L., Bonadiman, C., Nowell, G., Pearson, D., Siena, F., & Wilson, M. (2006). Evidence of diverse depletion and metasomatic events in harzburgite–lherzolite mantle xenoliths from the Iberian plate (Olot, NE Spain): Implications for lithosphere accretionary processes. Lithos, 94, https://doi.org/10.1016/j.lithos.2006.06.008

Adakites without slab melting: high pressure differentiation of island arc magma, Mindanao, the Philippines (2006)
Journal Article
Macpherson, C., Dreher, S., & Thirlwall, M. (2006). Adakites without slab melting: high pressure differentiation of island arc magma, Mindanao, the Philippines. Earth and Planetary Science Letters, 243(3-4), 581-593. https://doi.org/10.1016/j.epsl.2005.12.034

New geochemical data for Pleistocene magmatic rocks from the Surigao peninsula, eastern Mindanao, the Philippines, demonstrate typical adakitic traits, including elevation of Sr / Y and depletion of the heavy rare earth elements. 87Sr / 86Sr and 143N... Read More about Adakites without slab melting: high pressure differentiation of island arc magma, Mindanao, the Philippines.

The effects of three-dimensional structure on two-dimensional images of crustal seismic sections and on the interpretation of shear zone morphology (2006)
Journal Article
Hobbs, R., Drummond, B., & Goleby, B. (2006). The effects of three-dimensional structure on two-dimensional images of crustal seismic sections and on the interpretation of shear zone morphology. Geophysical Journal International, 164(3), 490-500. https://doi.org/10.1111/j.1365-246x.2006.02814.x

Crustal scale seismic images provide information on the geometry of subsurface structure. In this paper we examine shear zones as they provide geometrical constraints on the evolution of the crust and as they provide pathways for the migration of min... Read More about The effects of three-dimensional structure on two-dimensional images of crustal seismic sections and on the interpretation of shear zone morphology.

Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA. (2006)
Journal Article
Gröcke, D., Ludvigson, G., Witzke, B., Robinson, S., Joeckel, R., Ufnar, D., & Ravn, R. (2006). Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA. Geology, 34(3), 193-196. https://doi.org/10.1130/g21998.1

Analysis of bulk sedimentary organic matter and charcoal from an Albian-Cenomanian fluvial-estuarine succession (Dakota Formation) at Rose Creek Pit (RCP), Nebraska, reveals a negative excursion of ∼3‰ in late Albian strata. Overlying Cenomanian stra... Read More about Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA..

Petrogenesis of Mesozoic granitoids and volcanic rocks in South China: A response to tectonic evolution (2006)
Journal Article
Zhou, X., Sun, T., Shen, W., Shu, L., & Niu, Y. (2006). Petrogenesis of Mesozoic granitoids and volcanic rocks in South China: A response to tectonic evolution. Episodes, 29(1), 26-33

This paper summarizes the new results on the petrogenesis of Mesozoic granitoids and volcanic rocks in South China. The authors propose that these rocks were formed in time and space as a response to regional tectonic regime change from the continent... Read More about Petrogenesis of Mesozoic granitoids and volcanic rocks in South China: A response to tectonic evolution.