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    Academic Journals

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• Timing of fault reactivation in the upper crust of the St. Lawrence rift system, Canada, by K-Ar dating of illite-rich fault rocks

  Authors:Christian Sasseville, Norbert Clauer, and Alain TremblayFrom:Canadian Journal of Earth Sciences (Vol. 49, Issue 5) Peer-Reviewed

  May 2012 Report 1600L

• Emulsifying the crust

  From:Science (Vol. 310, Issue 5754) Peer-Reviewed

  Dec. 9, 2005217 words Brief article 1380LNot quite 2 billion years ago, a large asteroid stuck itself into what is now eastern central Ontario, forming the Sudbury impact crater. The energy of the impact melted a large amount of the continental crust,...

• The earth's early evolution

  Authors:Samuel A. Bowring and Todd HoushFrom:Science (Vol. 269, Issue 5230) Peer-Reviewed

  Sept. 15, 19956,451 words Article The Archean crust contains direct geochemical information of the Earth's early planetary differentiation. A major outstanding question in the Earth sciences is whether the volume of continental crust today represents...

• Deposition of 1.88-billion-year-old iron formations as a consequence of rapid crustal growth

  Authors:Birger Rasmussen, Ian R. Fletcher, Andrey Bekker, Janet R. Muhling, Courtney J. Gregory, and Alan M. ThorneFrom:Nature (Vol. 484, Issue 7395) Peer-Reviewed

  Apr. 26, 20123,923 words Report 1680LAuthor(s): Birger Rasmussen (corresponding author) [1]; Ian R. Fletcher [1]; Andrey Bekker [2]; Janet R. Muhling [3]; Courtney J. Gregory [1]; Alan M. Thorne [4] Iron formations are chemical sedimentary rocks...

• U-Pb zircon geochronology from the Alexander terrane, southeast Alaska: implications for the Greens Creek massive sulphide deposit

  Authors:Patrick J. Sack, Ron F. Berry, J. Bruce Gemmell, Sebastien Meffre, and Andrew WestFrom:Canadian Journal of Earth Sciences (Vol. 53, Issue 12) Peer-Reviewed

  Dec. 201611,797 words Article 1540LAbstract: This paper presents results of a laser ablation - inductively coupled plasma - quadrapole mass spectrometer (LA-ICP-QMS) U-Pb dating study of small in situ zircon grains from samples collected in the vicinity...

• Rare earth element-Si[O.sub.2] systematics of island arc crustal amphibolite migmatites from the Asago body of the Yakuno Ophiolite, Japan: a field evaluation of some model predictions

  Authors:Xiaofei Pu, James G. Brophy, and Tatsuki TsujimoriFrom:Contributions to Mineralogy and Petrology (Vol. 168, Issue 3) Peer-Reviewed

  Sept. 20144,324 words Article 1440LThe two most commonly invoked processes for generating silicic magmas in intra-oceanic arc environments are extended fractional crystallization of hydrous island arc basalt magma or dehydration melting of lower crustal...

• Detection of a large-scale mass redistribution in the terrestrial system since 1998. (Reports)

  Authors:Christopher M. Cox and Benjamin F. ChaoFrom:Science (Vol. 297, Issue 5582) Peer-Reviewed

  Aug. 2, 20022,513 words Article Earth's dynamic oblateness ([J.sub.2]) had been undergoing a decrease, according to space geodetic observations over the past 25 years, until around 1998, when it switched quite suddenly to an increasing trend that has...

• Heterogeneous Hadean hafnium: evidence of continental crust at 4.4 to 4.5 Ga

  Authors:T.M. Harrison, J. Blichert-Toft, W. Muller, F. Albarede, P. Holden, and S.J. MojzsisFrom:Science (Vol. 310, Issue 5756) Peer-Reviewed

  Dec. 23, 20053,202 words Article 1740LThe long-favored paradigm for the development of continental crust is one of progressive growth beginning at ~4 billion years ago (Ga). To test this hypothesis, we measured initial [sup.176]Hf/[sup.177]Hf values of...

• Multi-quadric collocation model of horizontal crustal movement

  Authors:Gang Chen, Anmin Zeng, Feng Ming, and Yifan JingFrom:Solid Earth (Vol. 7, Issue 3) Peer-Reviewed

  May 24, 2016229 words Brief article To establish the horizontal crustal movement velocity field of the Chinese mainland, a Hardy multi-quadric fitting model and collocation are usually used. However, the kernel function, nodes, and smoothing factor are...

• Crustal thickness of Antarctica estimated using data from gravimetric satellites

  Authors:Muriel Llubes, Lucia Seoane, and Sean BruinsmaFrom:Solid Earth (Vol. 9, Issue 2) Peer-Reviewed

  Apr. 17, 2018211 words Author abstract, Bri... Computing a better crustal thickness model is still a necessary improvement in Antarctica. In this remote continent where almost all the bedrock is covered by the ice sheet, seismic investigations do not reach a...

• Workshop report: Exploring deep oceanic crust off Hawai`i.

  Authors:Susumu Umino, Gregory F. Moore, Brian Boston, Rosalind Coggon, Laura Crispini, Steven D'Hondt, et al.From:Scientific Drilling (Vol. 29) Peer-Reviewed

  Apr. 26, 2021436 words Article For more than half a century, exploring a complete sequence of the oceanic crust from the seafloor through the Mohorovicic discontinuity (Moho) and into the uppermost mantle has been one of the most challenging missions...

• 3D crustal stress state of Germany according to a data-calibrated geomechanical model.

  Authors:Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, et al.From:Solid Earth (Vol. 12, Issue 8) Peer-Reviewed

  Aug. 11, 2021329 words Brief article The contemporary stress state in the upper crust is of great interest for geotechnical applications and basic research alike. However, our knowledge of the crustal stress field from the data perspective is limited. For...

• Geochemical consequences of oxygen diffusion from the oceanic crust into overlying sediments and its significance for biogeochemical cycles based on sediments of the northeast Pacific.

  Authors:Gerard J. M. Versteegh, Andrea Koschinsky, Thomas Kuhn, Inken Preuss, and Sabine KastenFrom:Biogeosciences (Vol. 18, Issue 17) Peer-Reviewed

  Sept. 13, 2021455 words Article Exchange of dissolved substances at the sediment-water interface provides an important link between the short-term and long-term geochemical cycles in the ocean. A second, as yet poorly understood sediment-water exchange...

• Timescales of crustal melting in the Higher Himalayan Crystallines (Sikkim, Eastern Himalaya) inferred from trace element-constrained monazite and zircon chronology

  Authors:Daniela Rubatto, Sumit Chakraborty, and Somnath DasguptaFrom:Contributions to Mineralogy and Petrology (Vol. 165, Issue 2) Peer-Reviewed

  Feb. 201313,308 words Chronology 1420LThe petrology and timing of crustal melting has been investigated in the migmatites of the Higher Himalayan Crystalline (HHC) exposed in Sikkim, India. The metapelites underwent pervasive partial melting through hydrous...

• Coronavirus lockdowns have changed the way Earth moves.

  Author:Elizabeth GibneyFrom:Nature (Vol. 580, Issue 7802) Peer-Reviewed

  Apr. 2020690 words Article 1450LA reduction in seismic noise because of changes in human activity is a boon for geoscientists. A reduction in seismic noise because of changes in human activity is a boon for geoscientists. Author(s): Elizabeth...

• Underplating and partial melting: implications for melt generation and extraction

  Author:George W. BergantzFrom:Science (Vol. 245, Issue 4922) Peer-Reviewed

  Sept. 8, 19892,419 words Article Underplating and Partial Melting: Implications for Melt Generation and Extraction UNDERPLATING AND INTRUSION OF continental crust by basaltic magma has repeatedly been invoked as a mechanism to provide the needed heat...

• Native iron in the continental lower crust: petrological and geophysical implications

  Authors:Stephen E. Haggerty and Paul B. ToftFrom:Science (Vol. 229) Peer-Reviewed

  Aug. 16, 19852,420 words Article Native Iron in the Continental Lower Crust: Petrological and Geophysical Implications Information on the mineralogy of the deep continental crust is extremely limited (1), and the redox state of the lower crust has...

• Laser 40Ar/39Ar evaluation of slow cooling and episodic loss of 40Ar from a sample of polymetamorphic muscovite

  Authors:W.E. Hames and K.V. HodgesFrom:Science (Vol. 261, Issue 5129) Peer-Reviewed

  Sept. 24, 19932,542 words Article Volume diffusion models predict that crystals with large diffusion dimensions can record a wide range of thermal conditions in the Earth's crust. Direct measurements of the zoning of radiogenic argon-40 in single...

• A priori sensitivity analysis for densification GPS networks and their capacities of crustal deformation monitoring: a real GPS network application

  Author:H. KonakFrom:Natural Hazards and Earth System Sciences (Vol. 14, Issue 5) Peer-Reviewed

  May 23, 201425 words Brief article Byline: P. Kü,reÃ,§,, H. Konak To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link:...

• Neoarchean continental crust formation and Paleoproterozoic deformation of the central Rae craton, Committee Bay belt, Nunavut

  Authors:M. Sanborn-Barrie, W.J. Davis, R.G. Berman, N. Rayner, T. Skulski, and H. SandemanFrom:Canadian Journal of Earth Sciences (Vol. 51, Issue 6) Peer-Reviewed

  June 201417,240 words Report 1520LIntegrated mapping, structural analysis, and U-Pb geochronology of the Committee Bay area, Nunavut, establish a record of Neoarchean crustal growth followed by penetrative Paleoproterozoic deformation. Supracrustal...