haʊˈɛvɚ, ɪn pɹˈɪnsɪpəl, ðɛɹ ɪz nˈʌθɪŋ ɪŋkəmpˈæɾᵻbəl bᵻtwˌiːn ɛkspˈænʃən, ˌɔn ɐ ɡlˈoʊbəl skˈeɪl, ænd sʌbdˈʌkʃən, ˌɔn ɐ lˈoʊkəl, ɔːɹ, ɹˈiːdʒənəl skˈeɪl, æz dɪskˈʌst ɪn diːtˈeɪl baɪ ˈændɹuː kˈʌɡlɚ, hˌuː dᵻskɹˈaɪbd ðə dˈɪfɹəns bᵻtwˌiːn sʌbdˈʌkʃən ænd ˌoʊvɚθɹˈʌstɪŋ, wˌɪtʃ hiː ˈɑːɹɡjuːd kæn biː dɪsˈɜːnd bˈeɪst ˌɔn tɛktˈɑːnɪk mˈæpɪŋ, ɐ dɪstˈɪŋkʃən ðæt ɪz nˌɑːt dʒˈɛnɚɹəli ɹˈɛkəɡnˌaɪzd baɪ mˈoʊst dʒˌiːoʊsˈaɪəntɪsts.
However, in principle, there is nothing incompatible between expansion, on a global scale, and subduction, on a local, or, regional scale, as discussed in detail by Andrew Kugler, who described the difference between subduction and overthrusting, which he argued can be discerned based on tectonic mapping, a distinction that is not generally recognized by most geoscientists.