selected publications
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academic article
- Gross JBoyd SLeinonen TWalker JA. A tale of two cities (and one vowel): sociolinguistic variation in Swedish. Language Variation and Change. 28:225-247. 2016
- Meyerhoff MWalker JA. An existential problem: the sociolinguistic monitor and variation in existential constructions on Bequia (St. Vincent and the Grenadines). Language in Society. 42:407-428. 2013
- Walker JA. Form, function, and frequency in phonological variation. Language Variation and Change. 24:397-415. 2012
- Meyerhoff MWalker JA. Grammatical variation in Bequia (St Vincent and the Grenadines). Journal of Pidgin and Creole Languages. 27:209-234. 2012
- Hoffman MFWalker JA. Ethnolects and the city: Ethnic orientation and linguistic variation in Toronto English. Language Variation and Change. 22:37-67. 2010
- Walker JA. Migration, accommodation and language change: Language at the intersection of regional and ethnic identity. Language in Society. 38:526-529. 2009
- Walker JATeipel APRyan JGSyracuse E. Light elements and Li isotopes across the northern portion of the Central American subduction zone. G3: Geochemistry, Geophysics, Geosystems: an electronic journal of the earth sciences. 10:n/a-n/a. 2009
- Walker JA. New-Dialect Formation in Canada: Evidence from the English Modal Auxiliaries. Journal of Sociolinguistics. 13:269-272. 2009
- Cacoullos RTWalker JA. On the persistence of grammar in discourse formulas: a variationist study of that. Linguistics: an interdisciplinary journal of the language sciences. 47:1-43. 2009
- Walker JAWalker, JamesRena Torres CacoullosJames A. Walker. The Present of the English Future: Grammatical Variation and Collocations in Discourse. Language (Washington). 85:321-354. 2009
- de Leeuw GAMHilton DRFischer TPWalker JA. The He–CO2 isotope and relative abundance characteristics of geothermal fluids in El Salvador and Honduras: New constraints on volatile mass balance of the Central American Volcanic Arc. Earth and Planetary Science Letters. 258:132-146. 2007
- Meyerhoff MWalker JA. The persistence of variation in individual grammars: Copula absence in ?urban sojourners? and their stay-at-home peers, Bequia (St Vincent and the Grenadines). Journal of Sociolinguistics. 11:346-366. 2007
- Walker JAMickelson JEThomas RBPatino LCCameron BCarr MJFeigenson MDEdwards RL. U-series disequilibria in Guatemalan lavas, crustal contamination, and implications for magma genesis along the Central American subduction zone. Journal of Geophysical Research. 112. 2007
- Walker JA. “There’s bears back there”: Plural existentials and vernacular universals in (Quebec) English. English World-Wide: a journal of varieties of English. 28:147-166. 2007
- Cameron BIWalker JA. Diverse volcanism in southeastern Guatemala: The role of crustal contamination. Geological Society of America. 412:121-139. 2006
- Walker JATempleton SCameron BI. The chemistry of spring waters and fumarolic gases encircling Santa María volcano, Guatemala: Insights into regional hydrothermal activity and implications for volcano monitoring. Geological Society of America. 412:59-83. 2006
- Elkins LJFischer TPHilton DRSharp ZDMcKnight SWalker J. Tracing nitrogen in volcanic and geothermal volatiles from the Nicaraguan volcanic front. Geochimica et Cosmochimica Acta. 70:5215-5235. 2006
- WALKER JACARROLL JI. The Camelback Zn-Pb-Cu Deposit: A Recent Discovery in the Bathurst Mining Camp, New Brunswick, Canada. Exploration and Mining Geology. 15:201-220. 2006
- WALKER JLENTZ DR. The Flat Landing Brook Zn-Pb-Ag Massive Sulfide Deposit, Bathurst Mining Camp, New Brunswick, Canada. Exploration and Mining Geology. 15:99-125. 2006
- WALKER JAGRAVES G. The Mount Fronsac North Volcanogenic Massive Sulfide Deposit: A Recent Discovery in the Bathurst Mining Camp, New Brunswick. Exploration and Mining Geology. 15:221-240. 2006
- WALKER JALENTZ DRMcCLENAGHAN SH. The Orvan Brook Volcanogenic Massive Sulfide Deposit: Anatomy of a Highly Attenuated Massive Sulfide System, Bathurst Mining Camp, New Brunswick. Exploration and Mining Geology. 15:155-176. 2006
- Shaw AMHilton DRFischer TPWalker JAde Leeuw GAM. Helium isotope variations in mineral separates from Costa Rica and Nicaragua: Assessing crustal contributions, timescale variations and diffusion-related mechanisms. Chemical Geology. 230:124-139. 2006
- WALKER JA. ZERO COPULA IN THE EASTERN CARIBBEAN: EVIDENCE FROM BEQUIA. American Speech: a quarterly of linguistic usage. 81:146-163. 2006
- Poplack SWalker JAMalcolmson R. An English ''like no other''?: Language Contact and Change in Quebec. Canadian Journal of Linguistics. 51:185-213. 2006
- Van Herk GWalker JA. S marks the spot? Regional variation and early African American correspondence. Language Variation and Change. 17:113-131. 2005
- Walker JA. The ain't constraint: Not-contraction in early African American English. Language Variation and Change. 17:1-17. 2005
- Walker JA. The handbook of language variation and change.. Language (Washington). 80:591-594. 2004
- Zimmer MMFischer TPHilton DRAlvarado GESharp ZDWalker JA. Nitrogen systematics and gas fluxes of subduction zones: Insights from Costa Rica arc volatiles. G3: Geochemistry, Geophysics, Geosystems: an electronic journal of the earth sciences. 5:n/a-n/a. 2004
- Walker JA. Review of Sociocultural and historical contexts of African American English , edited by Sonja L. Lanehart. Journal of Pidgin and Creole Languages. 19:424-428. 2004
- Walker JARoggensack KPatino LCCameron BIMat�as O. The water and trace element contents of melt inclusions across an active subduction zone. Contributions to Mineralogy and Petrology. 146:62-77. 2003
- Shaw AMHilton DRFischer TPWalker JAAlvarado GE. Contrasting He–C relationships in Nicaragua and Costa Rica: insights into C cycling through subduction zones. Earth and Planetary Science Letters. 214:499-513. 2003
- Cameron BWalker JCarr MPatino LMatı́as OFeigenson M. Flux versus decompression melting at stratovolcanoes in southeastern Guatemala. Journal of Volcanology and Geothermal Research. 119:21-50. 2003
- Walker JAWalker, JamesFischer TP. Subduction and Recycling of Nitrogen Along the Central American Margin. Science. 297:1154-1157. 2002
- Walker JAPippin CGCameron BPatino L. Tectonic insights provided by Mesoproterozoic mafic rocks of the St. Francois Mountains, southeastern Missouri. Precambrian Research. 117:251-268. 2002
- Walker JAGmitro TTBerg JH. Chemostratigraphy of the Neoproterozoic Alona Bay lavas, Ontario. Canadian Journal of Earth Sciences. 39:1127-1142. 2002
- Walker JAPatino LCCarr MJFeigenson MD. Slab control over HFSE depletions in central Nicaragua. Earth and Planetary Science Letters. 192:533-543. 2001
- Walker JA. Using the past to explain the present: Tense and temporal reference in Early African American English. Language Variation and Change. 13:1-35. 2001
- Walker JAPatino LCCameron BICarr MJ. Petrogenetic insights provided by compositional transects across the Central American arc: Southeastern Guatemala and Honduras. Journal of Geophysical Research. Solid Earth. 105:18949-18963. 2000
- Walker JACarr MJPatino LCJohnson CMFeigenson MDWard RL. Abrupt change in magma generation processes across the Central American arc in southeastern Guatemala: flux-dominated melting near the base of the wedge to decompression melting near the top of the wedge. Contributions to Mineralogy and Petrology. 120:378-390. 1995
- Walker JAWilliams SNKalamarides RIFeigenson MD. Shallow open-system evolution of basaltic magma beneath a subduction zone volcano: The Masaya Caldera Complex, Nicaragua. Journal of Volcanology and Geothermal Research. 56:379-400. 1993
- WALKER JACARR MJFEIGENSON MDKALAMARIDES RI. The Petrogenetic Significance of Interstratified High- and Low-Ti Basalts in Central Nicaragua. Journal of Petrology. 31:1141-1164. 1990
- Walker JA. Caribbean arc tholeiites. Journal of Geophysical Research. 94. 1989
- Carr MJWalker JA. Intra-eruption changes in composition of some mafic to intermediate tephras in Central America. Journal of Volcanology and Geothermal Research. 33:147-159. 1987
- WALKER JACARR MJ. Compositional variations caused by phenocryst sorting at Cerro Negro volcano, Nicaragua. Geological Society of America Bulletin. 97:1156-1156. 1986
- Walker JACarr MJ. Compositional variations caused by phenocryst sorting at Cerro Negro volcano, Nicaragua.. Geological Society of America Bulletin. 97:1156-1162. 1986
- Walker JARyall PJCZentilli MGibson ILDostal J. The origin of compositional variation in basalts recovered by submersible drill from Mount Glooscap, Mid-Atlantic Ridge at 36°25′N. Canadian Journal of Earth Sciences. 21:934-948. 1984
- WALKER JA. Volcanic Rocks from the Nejapa and Granada Cinder Cone Alignments, Nicaragua, Central America. Journal of Petrology. 25:299-342. 1984
- Carr MJMayfield DGWalker JA. Relation of lava compositions to volcano size and structure in El Salvador. Journal of Volcanology and Geothermal Research. 10:35-48. 1981
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book
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chapter
- Walker JAMeyerhoff M. Bequia English. 128-143. 2015
- Walker J. Contrasting patterns of agreement in three communities. 7-21. 2015
- Walker JA. On the syntax-prosody interface in American American English. 387-402. 2015
- Boyd SHoffman MFWalker JA. Sociolinguistic variation among multilingual youth: comparing Swedish cities and Toronto. 290-306. 2015
- Meyerhoff MWalker J. Subject and object pronoun use in Bequia (St Vincent & the Grenadines). 67-85. 2015
- Walker JAHoffman MF. Vignette 5a: fieldwork in immigrant communities. 178-184. 2013
- Walker JMeyerhoff M. Studies of the community and the individual. 175-194. 2013
- Walker JA. Variation analysis. 440-459. 2013
- Walker J. Collocations in grammaticalization and variation. 225-238. 2011
- Walker JSidnell J. Inherent variability and coexistent systems: negation on Bequia. 39-55. 2011
- Walker J. Affairs of state: Defining and coding stativity in English and English-based creole. Ed. Walker JA. 95-109. 2010
- Walker J. Introduction. Ed. Walker JA. 1-12. 2010
- Carr MJFeigenson MDPatino LCWalker JA. Volcanism and geochemistry in central America: Progress and problems. Geophysical Monograph Series. 153-174. 2004
- Walker JHowe D. Negation and the creole-origins hypothesis: Evidence from early African American English. 109-140. 2000
- Walker J. Rephrasing the copula: Contraction and zero in early African American English. 35-72. 2000
- Walker JSamarin WJ. The phonology of Sango. 861-880. 1997
- Walker JSamarin WJ. Verb-marking in Sango predicate chains. 113-128. 1994
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conference paper
- Walker JABeline Mendes R. Lower your voice: Vowel devoicing and deletion in São Paulo Portuguese 2019
- Walker JA. Sociophonetics at the intersection of variable processes 2019
- Walker JAPenry Williams C. Melbourne English: A new corpus 2018
- Walker JAMoulds TNZentilli MFeigenson MD. Spatial and temporal variations in volcanic of the Andean Central Volcanic Zone (26 to 28°S). Geological Society of America. 139-155. 1991
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erratum
- Walker JA. Form, function, and frequency in phonological variation – CORRIGENDUM. Language Variation and Change. 253-253. 2013
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review
- Walker JA. Bilingualism in the community: Code-switching and grammars in contact. Language in Society. 787-789. 2018
- Walker JA. The New Cockney: New Ethnicities and Adolescent Speech in the Traditional East End of London. Journal of Sociolinguistics. 337-340. 2018
- Walker JA. Sociolinguistic fieldwork. Language (Washington). 776-779. 2014
- Walker JA. Principles of linguistic change, vol 3, Cognitive and cultural factors. Language in Society. 93-96. 2013
- Walker JA. Analysing Variation in English. Diachronica: international journal for historical linguistics. 552-557. 2012