catflap.org Online Dictionary Query

  immature weathering /ˌɪmətʃˈʊə wˈɛðəɹɪŋ/
  frische Verwitterung
   see: weathering, decay, surface disintegration, cavernous weathering, carbonation, chemical weathering, decomposition, efflorescence, humic decomposition, concentric weathering, speroidal weathering, mechanical weathering, physical weathering, disintegration, disaggregation, onion weathering, degradation, submarine weathering, halmyro(ly)sis