Publications

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Halfar, J., Eisele, M., Riegl, B., Hetzinger, S., Godinez-Orta, L., 2012, Modern rhodolith-dominated carbonates at Punta Chivato, Mexico. Geodiversitas,

Hetzinger, S., Halfar J., Mecking, J. V., Keenlyside N. S., Kronz A., Steneck R. S., Adey W. H., Lebednik, P. A., 2011, First proxy evidence linking decadal North Pacific and Atlantic climate, Climate Dynamics, DOI 10.1007/s00382-011-1229-4

Halfar, J., *Williams, B, *Hetzinger, S., Steneck, R.S., Lebednik, P., *Winsborough, C., *Omar, A., *Chan, P., Wanamaker, A., 2011, 225 years of Bering Sea climate and ecosystem dynamics archived by coralline algae, Geology, v. 39, 6, 579-582, doi:10.1130/G31996

Chan, P., Halfar, J., Hetzinger, S., Williams, B., Steneck, R.S., Zack, T., Kunz, B., Jacob, D., 2011, Freshening of the Alaska Coastal Current recorded by coralline algal Ba/Ca ratios, Journal of Geophysical Research � Biogeosciences 116, G01032, doi:10.1029/2010JG001548

Wanamaker, A.D. Jr., Hetzinger, S., Halfar, J., 2011, Reconstructing mid- to high-latitude marine climate and ocean variability using bivalves, coralline algae, and marine sediments from the Northern Hemisphere, Palaeogeography, Palaeoclimatology, Palaeoecology, 302, 1-9, doi:10.1016/j.palaeo.2010.12.024

Halfar, J., Hetzinger, S., Zack T., Adey, W., Gamboa, G., Kunz, B., Williams, B., Jacob D., 2011, Coralline red algal growth-increment widths archive North Atlantic climate variability. Palaeogeography, Palaeoclimatology, Palaeoecology, 302, 71-80, doi:10.1016/j.palaeo.2010.04.009

Hetzinger, S., Halfar, J., Zack, T., Jacob, D., Kunz, B., Gamboa, G., Kronz, A., Adey, W., Lebednik, P., Steneck, R., 2011. High-resolution analysis of trace elements from the North Atlantic and North Pacific in encrusting coralline algae by laser ablation ICP-MS. Palaeogeography, Palaeoclimatology, Palaeoecology, 302, 81-94 doi:10.1016/j.palaeo.2010.06.004

Williams, B., Halfar, J, Steneck, R.S., Wortmann, U.G., Hetzinger, S., Adey, W., Lebednik, P., Joachimski, M., 2011, Twentieth century d13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea, Biogeosciences, 8, 165-174. doi:10.5194/bg-8-165-2011

Gamboa, G., Halfar, J., Hetzinger, S., Adey, W., Zack, T., Kunz, B., Jacob D.E., 2010, Mg/Ca ratios in coralline algae as proxies for NW Atlantic temperature variations. Journal of Geophysical Research � Oceans, 115, C12044, doi:10.1029/2010JC006262

Hetzinger, S., Pfeiffer, M., Dullo, W.C., Garbe-Sch�nberg, D., Halfar, J., 2010, Rapid 20th century warming in the Caribbean and impact of remote forcing on climate in the northern tropical Atlantic as recorded in a Guadeloupe coral. Palaeogeography, Palaeoclimatology, Palaeoecology, 296, 1-2, 111-124

Westphal, H., Halfar, J., Freiwald, A., 2010, Non-coralgal carbonates in subtropical to tropical settings in the present and in the past. International Journal of Earth Sciences, 99, S153-S169

Hetzinger, S., Halfar, J., Kronz, A., Steneck, R., Adey, W., Lebednik, P., Sch�ne, B.R., 2009, High-resolution Mg/Ca ratios in a coralline red algae as a proxy for Bering Sea temperature variations. Palaios, v. 24, 406-412.

Halfar, J., Eisele, M., Riegl, B., Godinez-Orta, L., submitted, Are rhodolith-dominated carbonates indicators of nutrient-enriched conditions? Palaios.

Halfar, J., Steneck, R., Joachimski, M., Kronz, A., Wanamaker, A.D. Jr., 2008, Coralline red algae as high-resolution climate recorders, Geology, v. 36, 6, 463-466

Halfar, J., Fujita, R., 2007, Danger of deep-sea mining - Plans for deep-sea mining could pose a serious threat to marine ecosystems, Science, 316, 987.

Halfar, J., Steneck, R., Schöne, B., Moore, G.W.K., Joachimski, M., Kronz, A., Fietzke, J., Estes, J., 2007, Coralline alga reveals first marine record of subarctic North Pacific climate change, Geophysical Research Letters,34, L07702, doi:10.1029/2006GL028811. (Selected as EDITOR�s HIGHLIGHT).

Fuentes-Yaco, C., Valdez-Holguín, J.E., Devred, E., Platt T., Sathyendranath, S., Halfar, J., Godinez Orta, L., Borges, J.M., in press, Teledección del impacto del Huracán Ignacio (2003) en el Pacífico Tropical Oriental. In: B. Hernández de la Torre, G. Gaxiola Castro (Eds.): Carbono en Ecosistemas Acuáticos de México, Instituto Nacional de Ecología and CICESE, México.

Riegl, B., Halfar, J., Purkis, S.J., Godinez-Orta, L., 2007, Sedimentary facies of the eastern Pacific’s northernmost reef-like setting (Cabo Pulmo, Mexico): geophysical and remote-sensing based mapping, Marine Geology, v. 236, 61-77.

Fuentes-Yaco, C., Valdez-Holguín, J.E., Devred, E., Platt T., Sathyendranath, S., Halfar, J., Godinez Orta, L., Borges, J.M., 2006, Biological impact of Hurricane Ignacio (2003) in the Eastern Pacific Ocean as observed through MODIS data. In: Robert J. Frouin, V.K. Agarwa, H. Kawamura, S. Nayak, D. Pan (Eds.): Remote Sensing of the Marine Environment. Proceedings of International Society for Optical Engineering, v. 6406, 640612, 10 p.

Hetzinger, S., Halfar, J., Riegl, B., Godinez-Orta, L., 2006, Sedimentology and acoustic mapping of modern rhodolith beds on a non-tropical carbonate shelf (Gulf of California, Mexico). Journal of Sedimentary Research, v. 76, 670-682.

Halfar, J., Godinez-Orta, L., Mutti, M., Valdez-Holguin, J.E., Borges, J.M., 2006, Carbonates calibrated against oceanographic parameters along a latitudinal transect in the Gulf of California, Mexico. Sedimentology, v. 53, 297-320.

Halfar, J., Strasser, M., Riegl, B., Godinez-Orta, L., 2006, Oceanography, acoustic mapping and sedimentology of a bryomol carbonate factory in the northern Gulf of California, Mexico. In: Pedley, P.M, Carannante, G. (Eds.): Cool-Water Carbonates: Depositional Systems and Palaeoenvironmental Controls. Geological Society of London Special Publications, v. 255, 197-215.

Halfar, J., Godinez-Orta, L., Riegl, B., Valdez-Holguin, J.E., Borges, J.M., 2005, Living on the edge: High-latitude Porites carbonate production under warm temperate eutrophic conditions. Coral Reefs, v. 24, p. 582-592.

Halfar, J., Mutti, M., 2005, Global dominance of coralline red-algal facies: A response to Miocene oceanographic events. Geology, v. 33, no. 6, p. 481-484.

Halfar, J., Godinez-Orta, L., Mutti, M., Valdez-Holguin, J, Borges, J., 2004, Nutrient and temperature controls on modern carbonate production: an example from the Gulf of California, Mexico. Geology, v. 32, no. 3, p. 213-216.

Halfar, J., Ingle, J.C., Godinez-Orta. L., 2004, Modern heterozoan mixed carbonate-siliciclastic sediments and environments of the southwestern Gulf of California, Mexico. Sedimentary Geology, v. 165, p. 93-115.

Halfar, J., Ingle, J.C., 2003, Modern warm-temperate and subtropical shallow water benthic foraminifera of the southern Gulf of California, Mexico. Journal of Foraminiferal Research, v. 33, no. 4, p. 309-329.

Halfar, J., Fujita, R. M., 2002, Precautionary management of deep-sea mining. Marine Policy, v. 26, 2, p. 103-106.

Halfar, J., Godinez-Orta, L., Goodfriend, G.A., Mucciarone, D.A, Ingle, J. C., Holden, P., 2001, Holocene-Pleistocene carbonate sedimentation and tectonic history of the La Paz area, Baja California Sur, Mexico. Sedimentary Geology, v. 144, 1-2, p. 149-177

Halfar, J., Zack, T., Kronz, A., Zachos, J., 2000, Geochemical signals of rhodoliths (coralline red algae)- a new biogenic archive. Journal of Geophysical Research, v. 105 , No. C9 , p. 22,107-22,116

Halfar, J, Godinez-Orta, L, Ingle, J. C., 2000, Microfacies analysis of Recent carbonate environments in the southern Gulf of California, Mexico- a model for warm-temperate to subtropical carbonate formation. Palaios, v. 15, p. 323-342.

Goodfriend, G.A., Halfar, J., Godinez-Orta, L., 2000, Chronostratigraphy of sediments in the southern Gulf of California, based on amino acid racemization analysis of mollusks and rhodoliths. In: Goodfriend, G.A., Collins, M.J., Fogel, M.L., Macko, S A., and Wehmiller, J.F. (Eds.), Perspectives in Amino Acid and Protein Geochemistry, Oxford Univ. Press, New York, pp. 320-330.

Halfar, J., Riegel, W., Walther, H., 1998, Facies architecture and sedimentology of fluvial deposits: A Paleogene example from the Weisselster Basin, Germany. Sedimentology, v. 3, p.1-17.

Halfar, J. and Riegel, W., 1995, Faziesarchitektur and Sedimentologie eines paläogenen fluviatilen Systems im Tagebau Schleenhain, Leipzig; Abhandlungen des Staatlichen Museums für Mineralogie und Geologie zu Dresden, v. 41, p. 53-72.

Editor:

Halfar, J.; Nava-Sanchez, E. (guest editors of special issue), 2001, Sedimentation and Tectonics Along a Rift Basin Margin: The Gulf of California. Sedimentary Geology, v. 144, 1-2.

Unpublished Reports:

Halfar, J., Fujita, R., 2000, Mining on the continental shelf- a poorly regulated environmental issue, Internal Report, Environmental Defense, Oakland, USA, 17p.

Halfar, J., Fujita, R., 2000. The Current Status of Deep-Sea Mining and its Environmental Consequences, Internal Report, Environmental Defense, Oakland, USA, 19p.

Conference Contributions:

Chan, P., Halfar, J., Williams, B., Adey, W.H., Lebednik, P.A., Steneck, R.S. (2012) Interdecadal Variability in Coralline Algal Calcification Rates in Response to the Pacific Decadal Oscillation, ICES, Mallorca, April 2012.

Williams, B., Halfar, J., Hetzinger, S., Adey, W.H., Steneck, R.S., Lebednik, P.A., Chan, P. (2012) Variable controls on subarctic coralline algal growth, American Geophysical Union, Ocean Science Meeting, Feb 2012.

Williams, B., Halfar, J., Hetzinger, S., Lebednik P.A., Steneck, R.S., Adey W.H., Fietzke J., Jacob, D. (2011) 350 years of Aleutian Island arc paleoceaographic change extracted from the skeletons of subarctic coralline algae, American Geophysical Union Fall Meeting, Dec 2011, San Francisco.

Mecking J. V. , Hetzinger S., Halfar, J., Keenlyside, N. S., Kronz, A.. Steneck R. S., Adey W. H., Lebednik P. A. (2011) Marine proxy evidence linking decadal North Pacific and Atlantic climate, American Geophysical Union Fall Meeting, Dec 2011, San Francisco.

Hook, B., Halfar, J., Bollmann, J., Gedalof, Z., and Schulze, D. (2011) Paleoclimatology of the Early Paleogene using Kimberlite-Hosted Mummified Wood from the Canadian Arctic, American Geophysical Union Fall Meeting, Dec 2011, San Francisco.

Hook, B., Halfar, J., Bollmann, J., Gedalof, Z., Walker, J., and Schulze, D. (2011) Paleoclimatology of the Early Paleogene using Stable Isotopes of Kimberlite-hosted Mummified Wood. ASITA: Advances in Stable Isotope Techniques and Applications. Queen's University, Kingston, ON, CA. June 12 - 15, 2011.

Boucher E., Halfar, J., Williams, B., Hetzinger, S., Steneck, R.S., Adey, W. (2011) Changes in coralline algal calcification as a possible indicator of sub-arctic ocean acidification. Advances in Earth Science Research Conference, Carleton University, Ottawa, Canada, March 25-27, 2011.

Keenlyside N., Hand, R., Tseng, W.-J., Hetzinger, S., Mecking, J., Halfar, J. (2010), Preliminary results: ECHAM5 T213 (50km), Simulation over mid-latitude SST fronts, JSPS-DFG workshop, Sapporo, Japan, 18-19.10.2010

Keenlyside N., Hetzinger, S., Mecking, J., Halfar, J. (2010) Are North Pacific and Atlantic multi-decadal variability related? Joint IFM-GEOMAR IO RAS � IAP RAS Workshop, 29.04.2010

Williams, B., Halfar, J, Hetzinger S., Steneck, R.S., Adey, W., Lebednik, P., Barth, M., 2010, Mg/Ca in coralline algae record 300 years of sea surface temperatures in the Bering Sea, 10th International Conference on Paleoceanography, Aug. 29-Sep. 3

Mallela, J., Kulfan C.M., *Hetzinger, S., Halfar, J. Dullo, C., Macrander, A., Grove, C., Zinke J., 2010,Tobago brain coral provides a long-term archive of south American river runoff, tropical climate variability and shifts in coral growth, Australian Coral Reef Society Annual Conference, Coffs Harbour, Australia, Sept. 10-12

Halfar, J., * Williams, B., *Hetzinger, S, Steneck, R., Adey, W.,, 2010, Skeletal density trends in coralline algae suggest ocean acidification impacts in the North Pacific and North Atlantic, 2nd International Sclerochronology Conference, Mainz, Germany, July 25-30

*Chan, P., Halfar, J., *Hetzinger, S., Steneck, R., Zack, T., Jacob, D., 2010, Is the Alaska Coastal Current becoming less saline? An example using coralline algal Ba/Ca ratios, 2nd International Sclerochronology Conference, Mainz, Germany, July 25-30

*Hetzinger, S., Kulfan C.M., Mallela, J., Halfar, J. Dullo, C., Macrander, A., Grove, C., Zinke J., 2010, Tobago coral record as a high-resolution archive of Amazon and Orinoco River outflow and tropical climate variability, 2nd International Sclerochronology Conference, Mainz, Germany, July 25-30

*Hetzinger, S., Halfar, J, Keenlyside, N., Mecking J., Kronz A., Steneck, R., Adey, W,. Lebednik, P.A., 2010, A link between North Pacific and North Atlantic climate on multidecadal time scales - new insights from coralline algae, 2nd International Sclerochronology Conference, Mainz, Germany, July 25-30.

*Chan, P., Halfar, J., *Hetzinger, S., Steneck, R., Zack, T., B. Kunz, D. Jacob, 2010,. Coralline red algae as recorders of past temperature and salinity variability of the Alaska Coastal Current, 2010 AGU Ocean Science Meeting, Portland, Oregon, Feb. 17-21.

*Chan, P., Halfar, J., *Hetzinger, S., Steneck, R., Zack, T., B. Kunz, D. Jacob, 2010,. Coralline red algae as recorders of past temperature and salinity variability of the Alaska Coastal Current, 2010 Alaska Marine Science Symposium, Anchorage, Alaska, Jan. 18-22.

Halfar, J., *Hetzinger, S. , Kronz, A., Steneck, R., Adey, A., and Lebednik, P., 2009, High-resolution Mg/Ca ratios in a coralline red alga as a proxy for Bering Sea temperature variations and teleconnections, Geological Society of America Annual Meeting, 18-21 October, 2009, Portland, USA.

*Chan, P., Halfar, J., *Hetzinger, S., Steneck, R., Zack, T., 2009, Coralline red algae records past temperature variability in the Alaska Coastal Current, PAGES, 3rd Open Science Meeting, 8-11 July, 2009, Corvallis, USA.

Halfar, J., *Hetzinger, S., Zack, T., Simon, K., Kronz, A., Robert S. Steneck, R., Adey, W., Lebednik, P., Sch�ne, B., Fietzke J., 2009, High-resolution analysis of trace elements in encrusting coralline red algae by laser ablation ICP-MS, International Fossil Algal Association - 6th Regional Symposium � Milan, Italy, June 30-July 5th.

Halfar, J., *Eisele, M., Riegl, B., *Hetzinger, S., Godinez-Orta, L., 2009, Acoustic mapping of rhodolith-dominated carbonates at Punta Chivato, Mexico, International Fossil Algal Association - 6th Regional Symposium � Milan, Italy, June 30-July 5th.

*Tripp Quezada, A.; Halfar, J.; God�nez, L., Borges Souza, J., 2009 (extended abstract), Biodiversity of Molluscs associated with a nontropical carbonate shelf in Punta Chivato, Gulf of California. 42nd Western Society of Malacologists Annual Meeting. Fullerton, California, June 23-27, pages 78-83.

*Gamboa, G., J. Halfar, T. Zack, S., *Hetzinger, W. Adey, 2009, Mg/Ca ratios in coralline red algae as temperature proxies for reconstructing Labrador Current variability, American Geophysical Union, Spring Meeting, Toronto, Canada, 24th � 27th May 2009.

*Hetzinger, S., J. Halfar , T. Zack , B. Kunz, K., Simon, A. Kronz, W. Adey, P. A. Lebednik, R.S. Steneck, B.R. Sch�ne, 2009, High-resolution analysis of trace elements in encrusting coralline red algae by laser ablation ICP-MS, American Geophysical Union, Spring Meeting, Toronto, Canada, 24th � 27th May 2009.

Halfar, J., *Hetzinger, S. , Kronz, A., Steneck, R., Adey, A., and Lebednik, P., 2009, High-Resolution Mg/Ca Ratios in a Coralline Red Alga as a Proxy for Bering Sea Temperature Variations and Teleconnections, American Geophysical Union, Spring Meeting, Toronto, Canada, 24th � 27th May 2009.

Halfar, J., *C. Winsborough, *A. Omar, *S. Hetzinger, R.S. Steneck, P. A.Lebednik, 2009, Do coralline red algal growth increment widths archive paleoenvironmental information? European Geophysical Union, Annual Meeting, Vienna, Austria, 20 April 2009.

*Hetzinger, S., J. Halfar , T. Zack , K. Simon, A. Kronz, W. Adey, P. A. Lebednik, R.S. Steneck, B.R. Sch�ne, 2009, High-resolution analysis of trace elements in encrusting coralline red algae by laser ablation ICP-MS, European Geophysical Union, Annual Meeting, Vienna, Austria, 20 April 2009.

*Walker, J. J., J. Halfar, D. Schulze, Z. Gedalof, G. W. K. Moore, 2009, High-resolution reconstruction of Arctic paleoclimate derived from 53 million year old kimberlite-hosted Metasequoia wood, European Geophysical Union, Annual Meeting, Vienna, Austria, 20 April 2009.

*Gamboa, G. J. Halfar, T. Zack, *S. Hetzinger, W. Adey, 2009, Mg/Ca ratios in coralline red algae as temperature proxies for reconstructing Labrador Current variability, European Geophysical Union, Annual Meeting, Vienna, Austria, 20 April 2009.

*Tripp Quezada, A.; Halfar, J.; God�nez, L., Borges Souza, J., 2009. Biodiversidad de moluscos de fondos blandos asociados a sedimentos de carbonatos modernos en Bah�a de Los �ngeles, Golfo de California. I Simposio de Ecolog�a y Conservaci�n S.O.S. NATURA. Santiago de Cuba. 6 - 10 de Abril, 2009.

*Tripp Quezada, A.; Halfar, J.; God�nez, L., Borges Souza, J., 2008, Biodiversity of Mollusks associated with a non-tropical carbonate shelf in the Gulf of California, 41st Annual Meeting, Western Society of Malacologists, Menlo Park, California, USA, June 5-8th 2008.

*Tripp Quezada, A.; Halfar, J.; God�nez, L., Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos en el arrecife de Cabo Pulmo, Golfo de California, Mexico, III Congreso Brasileiro de Oceanografia, Fortaleza, Brasil, 20-24 May, 2008.

*Hetzinger, S.; Halfar, J.; Kronz, A.; Steneck, R.; Adey, W.; Lebednik, P.A.; Schoene, B.R., 2008, High-resolution Mg/Ca ratios in crustose coralline red algae from the subarctic North Pacific � a record of past climate variability, European Geophysical Union, Annual Meeting, Vienna, Austria, 18 April 2008.

*Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos modernos en el Golfo de California, 1er. Congreso sobre la evoluci�n geol�gica y ecol�gica del noroeste de

*Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos en el arrecife de Cabo Pulmo, Golfo de California, V Taller Internacional CONyMA, Havanna, Cuba, 3-7 March 2008

Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Biodiversity of Mollusks associated with a non-tropical carbonate shelf in the Gulf of California, 41st Annual Meeting, Western Society of Malacologists, Menlo Park, California, USA, June 5-8th 2008.

Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos en el arrecife de Cabo Pulmo, Golfo de California, Mexico, III Congreso Brasileiro de Oceanografia, Fortaleza, Brasil, 20-24 May, 2008.

Hetzinger, S.; Halfar, J.; Kronz, A.; Steneck, R.; Adey, W.; Lebednik, P.A.; Schoene, B.R., 2008, High-resolution Mg/Ca ratios in crustose coralline red algae from the subarctic North Pacific - a record of past climate variability, European Geophysical Union, Annual Meeting, Vienna, Austria, 18 April 2008.

Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos modernos en el Golfo de California, 1er. Congreso sobre la evoluci�n geol�gica y ecol�gica del noroeste de Mexico, 21-23 of April 2008. Hermosillo Sonora, M�xico

Tripp Quezada, A.; Halfar, J.; God�nez, Lucio, Borges Souza, J., 2008, Comunidades de moluscos asociados a ambientes de carbonatos en el arrecife de Cabo Pulmo, Golfo de California, V Taller Internacional CONyMA, Havanna, Cuba, 3-7 March 2008

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2007, Biodiversity of Molluscs Associated to a Nontropical Carbonate Shelf in San Jos� Island, Gulf of California, 40th Annual Meeting Western Society of Malacologists, La Paz, Mexico, July 25-28 2007.

Halfar, J., Steneck, R., Moore, G.W.K., R�hl, J., Sch�ne, B., Fietzke, J., and Estes, J. 2007, Annual growth rates of coralline red algae reveal North Pacific-Bering Sea climate change and teleconnection patterns, 1st International Sclerochronology Conference, Florida, July 17-21, 2007.

Halfar, J., Steneck, R., Sch�ne, B., Moore, G. W. K., Joachimski, M., Kronz, A., Fietzke, J., and Estes J., 2007, Coralline alga reveals first marine record of subarctic North Pacific climate change, European Geophysical Union, Annual Meeting, Vienna, Austria, April 2007.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2007, Biodiversidad de Moluscos de Fondos Blandos Asociados a Ambientes de Carbonatos Modernos en Bah�a de Los Angeles, Golfo de California; M�xico. 5th Symposium Internacional sobre el Mar de Cortez, Sonora, Mexico, April 24-27, 2007.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2007,Biodiversidad de moluscos de fondos blandos asociados a ambientes de carbonatos modernos en Bah�a de Los �ngeles, Golfo de California; M�xico, XII Congreso Latinoamericano de Ciencias del Mar, Florian�polis, Brasil, April 15-19, 2007

Mutti, M., Halfar, J., 2007, Carbonate systems along temperature and nutrient gradients: theory and case studies, First International Workshop on the COREF Project, Okinawa, Japan, January 2007.

Fuentes-Yaco, C.; J. E. Valdez-Holgu�n; T. Platt; S. Sathyendranath; J. Halfar; L. Godinez Orta, J. M. Borges; E. Devred, 2006, Biological impact of Hurricane Ignacio (2003) in the Eastern Pacific Ocean as observed through MODIS data, Asia-Pacific Remote Sensing Conference, International Society for Optical Engineering, Nov. 13-17th, 2006, GOA, India.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2006, Biodiversidad de Moluscos de Fondos Blandos Asociados a Ambientes de Carbonatos Modernos en Bah�a de Los Angeles, Golfo de California; M�xico. Marcuba 2006, 7th Congress on Marine Sciences, Havanna, Cuba, Dec. 4-8th, 2006.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2006, Biodiversidad de Moluscos de Fondos Blandos del Arrecife de Cabo Pulmo, Golfo de California, M�xico. Marcuba 2006, 7th Congress on Marine Sciences, Havanna, Cuba, Dec. 4-8th, 2006.

Halfar, J., Riegl, B., Godinez, L., Pelz, K., 2006, Sedimentary facies and geophysical mapping of the eastern Pacific’s northernmost reef-like setting (Cabo Pulmo, Mexico), Sediment 2006, Göttingen.

Halfar, J., Steneck, R., Joachimski, M., Kronz, A., Estes, J., 2006, An 85-year stable oxygen isotope record derived from a North Pacific coralline red alga, American Geophysical Union, Ocean Science Meeting, Honolulu, February 2006.

Steneck, R.S., Estes, J.A., Halfar, J., 2005, Sea Otters, Trophic cascades and Seward’s folly: Over two centuries of phase-shifts, regime shifts and the Little Ice Age in the Aleutians witnessed by a coralline alga, Benthic Ecology Meeting, April 2005, USA.

Halfar, J., Mutti, M., 2005, Global dominance of coralline red-algal facies: A response to Miocene oceanographic events. Carbonate Systems during the Oligocene-Miocene climatic transition, workshop, Universität Potsdam, Germany, February 2005.

Halfar, J., 2005, Coralline red algae as high-resolution paleoclimate archives- a monitoring and calibration study. 1st Japanese-German Frontiers of Science Symposium, Mainz, Germany.

Halfar, J., Nava-Sanchez E., Molina-Cruz A., 2004, Redeposited Shallow Water Non-Tropical Carbonates in the Southern Gulf of California, Mexico. 32nd International Geological Congress, Firenze, Italy.

Mutti, M., Halfar J., Knoerich A., John C., 2004, Carbonate Systems along Temperature And Nutrient Gradients: Modern and Miocene Examples. 32nd International Geological Congress, Firenze, Italy.

Strasser, M., Halfar, J., Riegl, B., Godinez-Orta, L., 2004, Acoustic mapping and sedimentology of bryomol carbonates in the Gulf of California, Mexico. Sediment 2004, Aachen, Germany, 2.-5. June.

Valdez-Holguín, J.E., Halfar, J., Godinez Orta, L., Hinojosa Larios, J.A., Borges, J.M., 2004, Variación latitudinal de clorofila a en la costa occidental del Golfo de California. Gulf of California Conference, Tucson, Arizona, June 2004.

Valdez-Holguín, J.E., Halfar, J. Godinez Orta, L., Gutierrez de Velasco, G., Borges, 2004, Effects of Hurricane Ignacio (August 2003) on near surface chlorophyll concentrations and water temperature at Cabo Pulmo, Baja California Sur, México. Gulf of California Conference, Tucson, Arizona, June 2004.

Halfar, J, Riegl, B., Godinez, L., 2004, Acoustic Mapping and Sediment Composition of the Northernmost East Pacific Coral Reef at Cabo Pulmo, Mexico, AGU Ocean Science Meeting, Portland, Oregon, January 2004.

Halfar, J., Kronz, A., Steneck., R., Carriquiry, J., Godinez, L., Iglesias, R., Joachimski, M. (invited speaker), 2004, Field monitoring and geochemical analysis of paleoclimate signals of tropical to cold-temperate coralline red algae, AGU Ocean Science Meeting, Portland, Oregon, January 2004.

Godínez-Orta, L., Gutiérrez de Velasco, G., Halfar, J., Valdez-Holguín, J.E., Borges, J.M., 2003, Water temperature variability along the west coast of the Gulf of California, AGU Fall Meeting, San Francisco, December 2003, p. 1235.

Halfar, J., Godinez-Orta, L., Mutti, M., Valdez-Holguin, J, Borges, J., 2003, Modern non-tropical carbonates calibrated against nutrients and temperature, Geological Society of America Annual Meeting, Seattle, Washington, Nov. 2003, p. 84.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2003, Variación de las comunidades y del crecimiento de moluscos asociados a ambientes de carbonatos modernos a través de un transecto de la zona templada a la subtropical del Golfo de California, México, X Congreso Latinoamericano sobre Ciencias del Mar, Costa Rica, Sept. 2003.

Halfar, J., Godinez-Orta, L., Valdez-Holguin, J., Borges, J., Mutti, M., 2003, Modern non-tropical carbonates calibrated against nutrients and temperature: an example from the Gulf of California, Mexico, Sediment 2003, Terra Nostra, v. 3/03, June 2003, p. 29.

Godínez-Orta, L., Gutiérrez de Velasco, G., Halfar, J., Valdez-Holguín, J.E., Borges, J.M, 2003, Variabilidad de la temperatura a lo largo de la costa oeste del Golfo de California, III Simposium Internacional sobre el Mar de Cortés, 6.- 9.5.2003, La Paz, Mexico.

Tripp-Quezada, A., Halfar, J., Godinez-Orta, L., Borges, J.M., 2003, Community variations and growth of mollusks in modern carbonate environments along a transect from the temperate to the subtropical realm: the Gulf of California, Mexico, III Simposium Internacional sobre el Mar de Cortés, 6.- 9.5.2003, La Paz, Mexico.

Godinez-Orta, L. Halfar, J., Valdez-Holguin, J.E., Borges, J.M, Gutiérrez-Velasco, G., 2003, Non-tropical carbonates calibrated against nutrients and temperature: an example from the Gulf of California, Mexico, III Simposium Internacional sobre el Mar de Cortés, 6.-9.5.2003, La Paz, Mexico.

Valdez-Holguín, J.E., Halfar, J., Godinez Orta, L., Hinojosa Larios, J.A., Borges, J.M., 2003, Variación latitudinal de clorofila a en la costa occidental del Golfo de California, III Simposium Internacional sobre el Mar de Cortés, 6.-9.5.2003, La Paz, Mexico.

Halfar, J., Ingle, J.C. Jr., 2002, Modern warm-temperate to subtropical shallow water benthic foraminiferal faunas of the Southern Gulf of California, Mexico, Sediment 2002, Darmstadt, Germany, Schriftenreihe Deutsche Geol. Ges., 17, p. 80.

Halfar, J., Ingle, J.C. Jr., Godinez-Orta, L., Goodfriend, G.A., 2001, Rhodolith dominated warm-temperate to subtropical carbonates of the southern Gulf of California, Mexico, International Association of Sedimentologists, 21st meeting of Sedimentology, Davos, Switzerland, p. 186.

Halfar, J., Mutti, M., Godinez-Orta, L., 2001, Controls on modern production and accumulation of non-tropical carbonate sediments along a transect from the temperate to subtropical realm: the Gulf of California, Mexico, International Association of Sedimentologists, 21st meeting of Sedimentology, Davos, Switzerland, p. 190.

Halfar, J., Mutti, M., Godinez-Orta, L., 2001, Transitional non-tropical carbonate environments of the Gulf of California, Mexico, 2001 Margins Meeting, Kiel, Germany, p. 79-80.

Halfar, J., Goodfriend, G., Ingle, J. C. Jr., Godinez-Orta, L., 2001, Holocene shallow water carbonate accumulation in a warm-temperate to subtropical regime: the southern Gulf of California, Mexico: 6.6.-8.6.2001, Sediment 2001, Jena, Germany, Schrift. Deutsch. Geol. Ges., v. 13, p. 44.

Mutti, M., Halfar, J., 2001, Carbonates from the Gulf of California, Mexico: A calibration of carbonate facies to margin paleoceanography. 10-12.5.2001, Aplacon-Meeting, Joint European Ocean Drilling Initiative, Lisbon, Portugal, p. 100-101.

Halfar, J., Godinez-Orta, L., Goodfriend, G., Mucciaroni, D. A., Ingle, J. C. Jr., 2000, Recent-Pleistocene warm-temperate carbonate environments of the southern Gulf of California, Mexico. 17. Geowiss. Lateinamerika-Symposium, 11.-13. Okt., Stuttgart, Germany, Profil, Bd. 18, p. 48.

Halfar, J., Godinez-Orta, L., Ingle, J.C. Jr., 2000, Ambientes Carbonatados Recientes En La Bahía De La Paz, Baja California Sur, México, XII Congreso Nacional de Oceanografía, Huatulco, Oaxaca, 22-26 mayo del 2000, p. 42.

Halfar, J., Godinez-Orta, L., Goodfriend, G., Mucciaroni, D. A., Ingle, J. C. Jr., 2000, Sedimentacion de Carbonatos Pleistocenicos-Holocenicos y Historia Tectonica del Area de La Paz, Baja California Sur, Mexico. V Reunion Int. Sobre Geologia de la Peninsula de Baja Calif. Sur, 25.4- 1.5., Loreto, Mexico, p. 32-33

Halfar, J., Zack, T., Kronz, A., Zachos, J., 1998, Palaeoenvironmental signals and growth rates of rhodoliths- a geochemical approach, Goldschmidt Conference Toulouse 1998, Mineralogical Magazine, Vol. 62A, part 2, p.559-560.

Goodfriend, G. A., Halfar, J., 1998, Application of Amino Acid Racemization to Detailed Chronostratigraphic Analysis of Holocene Sedimentary Sequences; Perspectives in Amino Acid and Protein Geochemistry, Washington, D.C., p.41.

Halfar, J., 1997, Recent Peritidal Carbonate Environments of the La Paz Area, Baja California Sur, Mexico: A Model for Subtropical Carbonate Deposition; AAPG Bulletin, Vol. 81, No. 10, p. 1775.

Halfar, J., Ingle, J.C., Jr. and Cruz-Orozco, R., Godinez-Orta, L., 1996, Modern Carbonate Sediments and Environments of the La Paz Region, Baja California Sur, Mexico; AAPG Annual Meeting, San Diego, p.58-59.

Halfar, J., 1995, Facies Architecture and Sedimentology of Fluvial Deposits: A Paleogene Example from the Weisselster Basin, Germany; AAPG Annual Meeting, Houston, p. 37.

Halfar, J., Ingle, J.C., and Cruz-Orozco, R., 1995, Mixed carbonate-siliciclastic sediments and environments of the La Paz region, Baja California Sur, Mexico; Third Intern. Meeting on Geology of the Baja California Peninsula, La Paz, Mexico, p. 80.

Halfar, J., Fink, I., Riegel, W., Walther, H., 1995, Faziesarchitektur und Floreninhalt eines paläogenen fluviatilen Systems im Tagebau Schleenhain bei Leipzig; 123. Jahrestagung des APP, Dresden, p. 8-9.