| July, 2019 | Site formation and micromorphology of Muslim buildings, Torre d'en Galmès, Menorca |
| July, 2017; August, 2019 | Combustion features Pech de l'Azè IV Layer 8, Dordogne, France (with H.L. Dibble, D. Sandgathe, V. Aldeias) |
| August, 2016, 2018 | Geoarchaeology and micromorphology at Denisova Cave, Russion (with M. Morley, R.G. Roberts, Z. Jacobs) |
| June, July 2015 | Field work at Liang Bua, Flores, Indonesia (geoarchaeology, micromorphology with M. Morley; T. Sutikna, M. Tocheri, dirs.) |
| April, 2015 | Field work at Lake Mungo Australia (geoarchaeology and microfaces with Z. Jacobs, N. Stern) |
| June, 2010, 2011, 2012, 2013, 2014 | Re-evaluation of stratigraphy of La Ferrassie, France (with H. Dibble, A. Turq, S. McPherron, and D. Sandgathe) |
| June 2012 | Micromorphological sampling at Gault Site, Texax (M.B Collins, director) |
| November, 2011, 2012 | Micromorphology and site formation processes at Neolithic site of Shalonggang, China (with O. Bar-Yosef, Xiaohong Wu) |
| December, 2010; November, 2013 | Geoarchaeology at Diepkloof Rockshelter (assistant to Dr. C.E. Miller; Dr. P.J. Texier CNRS, dir) |
| June, 2009 | Palaeolithic site of Contrebandiers Cave, Morocco (with H. Dibble) |
| August, 2009 | Microstratigraphy and site formation at Neolithic site of Xian Ren Dong Cave, China |
| August, 2006 | Micromorphological sampling of Middle Palaeolithic site, Pinilla del Valle, Spain (Enrique Baquedano, director) |
| November, 2005 | Microstratigraphy at Early Neolithic site, Yuchanyan, Hunan Province, China (with O. Bar-Yosef and S. Weiner). |
| July, 2005 | Stratigraphy, micromorphology, and site formation at Wonderwerk Cave, South Africa (M. Chazan, dir). |
| November, 2004 | Micromorphology at Middle Stone Age site of Sibudu Cave, South Africa (L. Wadley, dir.). |
| July, 2004 | Geoarchaeology and microstratigraphy at Dmanisi, Georgian Republic (D. Lordkipanidze, C. Reid Ferring, dirs.). |
| July, 2004, 2005, 2007 | Geoarchaeology and microstratigraphy at Hohle Fels, Cave, Germany (N. Conard, dir.). |
| June, 2003, 2004, 2005, 2006, 2007 | Boston University Archaeological Field School, Taliotic settlements in Menorca. |
| June, 2004; July/August, 2005; May/June, 2006; July, 2007 | Geoarchaeology and microsediments at the cave of Roc de Marsal, France (H. Dibble, S. McPherron and A. Turq, dirs.). |
| March, 2003; Nov., 2004; Nov. 2006 | Geoarchaeology and micromorphology of Middle and Late Stone Age sites at Pinnacle Point, near Mossel Bay, South Africa (Dr. C. Marean, dir.). |
| August, 2002 | Geoarchaeology and micromorphology of coastal midden sites from St. Elejo Lagoon, California (B. Byrd, director). |
| August, 2001 | Geoarchaeology of Palaeolithic sites in Republic of Georgia (Ortvale Klade, Dzudzuana; with D. Adler, O. Bar-Yosef). |
| June, July, 2001, 2002, 2003 | Geoarchaeology of Pech de l’Azé IV Cave, Dordogne, France (H. Dibble and S. McPherron, dirs.). |
| May, 2001 | Evaluation of microstratigraphy from Neolithic sites in Southern China (with O. Bar-Yosef and S. Weiner). |
| January, 2000 | Assisted SUNY-Stony Brook graduate student, Jenna Cole in study of microstratigraphy and micromorphology of Middle Stone Age Blombos Cave, South Africa (Dr. C. Henshilwood, director). |
| September, 1999, 2000, 2002 | Almonda Caves, Portugal, geoarchaeology of Lower and Middle Palaeolithic cave deposits at Galeria Pesada (Dr. A.E. Marks director). |
| August, 1999, 2000, 2001, 2002 | Micromorphology and microstratigraphy from Upper Palaeolithic Hohle Fels and Geißenklösterle Caves, Germany (N. Conard, dir.). |
| August, 1999; July, 2000 | Stratigraphy and micromorphology of sediments from Upper Palaeolithic Üçagizili Cave, Turkey (S. Kuhn, dir.). |
| June, 1999 | Invited to collect micromorphology samples at Paleoindian, Hell Gap Site, Wyoming (M. Kornfeld, and G. Frison, dirs.). |
| August, 1998 | Geoarchaeology of Tel Rechesh, Israel (assisted L.C. Nordt, Baylor Univ.; A. Joffe, dir.). |
| April, 1997, Nov., 1997 | Evaluation of pits and tree throws from sites at Augustine Creek and Puncheon Run, Delaware (DelDOT and Louis Berger Associates). |
| January, 1997 | Micromorphology and site formation of sediments from LSA, Blydefontein Rockshelter, S. Africa (with C.B. Bousman). |
| May, 1996, 1997 | Micromorphology of sediments from Zhoukoudian Cave, China; with O. Bar-Yosef and S. Weiner. Evaluation of use of fire using micromorphology and FTIR. |
| June, 1995; August, 1997; Oct., 1998 | Microstratigraphy of Bois Roche Cave, France (P. Villa and L. Bartram, dirs.). |
| November, 1994 | Sampling for micromorphological analysis, floors from Demeter Sanctuary, and Frankish deposits from Corinth, Greece (N. Bookidis, dir.). |
| August, 1994 | Project geologist (geomorphology, stratigraphy and micromorphology) at Bronze Age Tell of Titris Höyük, Turkey (G. Algaze, dir.). |
| May, 1993 | Stratigraphy and micromorphology of Colha, Belize (T.R. Hester, dir.). |
| August, 1993 | Geoarchaeological survey in the Georgian Republic (B. Isaac, dir.). |
| July, 1992 - February, 1993 | Project geologist (sedimentology, stratigraphy, and micromorphology) at the Wilson-Leonard site, Texas (M. B. Collins, dir.). |
| August, 1992, 1996 | Excavations at Karain and Öküzini Caves, Turkey; sedimentology and micromorphology of cave deposits (I. Yalçinkaya, dir.). |
| June, July, 1992-2000 | Excavations at Hayonim Cave (Israel); stratigraphy, sedimentology and micromorphology of cave deposits (O. Bar-Yosef and B. Vandermeersch, dirs.). |
| February-March, 1992, 1993, 1995 | Geology, stratigraphy and micromorphology of Die Kelders Cave, South Africa (F. Grine and R. Klein, dirs.). |
| December, 1991; April, 1993 | Quaternary stratigraphy and geoarchaeological survey, Tennessee River, northern Alabama (B. Driskell, dir.). |
| September, 1991 | Holocene Stratigraphy and Geoarchaeology of Rio Concho Terraces for San Angelo, Texas Wastewater Improvement Project. |
| July, 1991; June, 1992, 1993, 1994, 1997, 1998, 1999 | Microstratigraphy, sedimentology and site formation processes at Dust Cave, Alabama (B. Driskell, dir.). |
| July, 1991 | Microstratigraphy and sedimentary environment of Pliocene Lower Stone Age site, W. Turkana, Kenya (M. Kubinjia, dir.). |
| Summers 1989, 1990, 1991 | Gilat project, Chalcolithic settlement in northern Negev; stratigraphy and site formation processes (T.E. Levy, dir.). |
| May, 1989; September, 1995, 1996, 1997, 1998 | Gorham’s Cave Excavations, Gibraltar (C. Stringer, dir.); stratigraphy, sedimentology and palaeoenvironments of cave deposits (with R.I. Macphail). |
| April, 1986, 1987; July, 1988 | Micromorphology, microstratigraphy and site formation processes at Keatley Creek site, British Columbia (B. Hayden, dir.). |
| May-August, 1985 | C.N.R.S. fellowship at Institut National Agronomique, Paris; micromorphology of sediments from Neolithic/Bronze Age Fort Harrouard (with M.-A. Courty and N. Fedoroff). |
| August, 1983 | Mousterian site in Biqa’at Quneitra, Golan Heights (N. Goren, dir.); stratigraphy, and geology of site and surroundings. |
| September-October, 1982-1988; summers, 1987, 1989, 1990 | Franco-Israeli excavations at Kebara Cave (Israel); stratigraphy and sedimentology of cave deposits. |
| September-October, 1982, 1983, 1984, 1987, 1988 | Chalcolithic site of Shiqmim, Northern Negev (T.E. Levy, dir.); stratigraphy, depositional and environmental history of site and area. |
| April, 1980 | Geological aspects of Late Bronze Age site of Deir el Balah, Western Negev (T. Dothan, dir.). |
| May, 1980 | Micromorphology of sediments from Shaw’s Creek Rockshelter, Australia (M.A.J. Williams, dir.). |
| September, 1979-February, 1980 | French Government fellowship at Institut National Agronomique, Paris; micromorphology of loess and paleosols in the Paris Basin (with N. Fedoroff). |
| Summer, 1978 | City of David excavations, Jerusalem (Y. Shiloh, dir.); geology of Hellenistic sediments. |
| Springs, 1977, 1978 | Hebrew Univ./Ben Gurion Univ. excavations at Qadesh Barnea, Sinai; stratigraphy and evolution of Late Quaternary landscapes and palaeoenvironments. |
| Fall, 1976 | French Government fellowship at Institute. du Quaternaire, Univ. de Bordeaux; micromorphology of sediments from Pech-de-l'Azé II rockshelter. |
| January, 1974, 1975, 1976 | Hebrew Univ. excavations in Gebel Maghara, Sinai; stratigraphy and evolution of Late Quaternary landscapes and palaeoenvironments. |
| August-October, 1972; summers 1974, 1975, 1977 | Southern Methodist Univ., Central Negev Project, Israel (A.E. Marks, dir.); Late Quaternary stratigraphy, palaeoenvironments, and evolution of landscapes. |
| Summers 1967, 1968, 1969, 1970 | Univ. Michigan/Arizona Tabun Cave excavations, Mt. Carmel, Israel (A.J. Jelinek, dir.); stratigraphy and sedimentology of cave deposits. |
| Summer, 1966 | Field assistant to W.R. Farrand, studying loess in Rhine Valley, France. |
