Bimodal volcanism Bimodal volcanism Bimodal volcanism is the eruption of both mafic and felsic lavas from a single volcanic centre with little or no lavas of intermediate composition. This type of volcanism is normally associated with areas of extensional tectonics, particularly rifts. Most occurrences of bimodal volcanism are associated with thinning of the crust and the presence of such rocks in metamorphic sequences has been used to provide evidence for past rifting events. Most examples come from areas of active continental rifting such as the Basin and Range Province. Bimodal volcanism has also been described from areas of transtension, the early phases
All-Ireland Intermediate Club Hurling Championship All-Ireland Intermediate Club Hurling Championship The All-Ireland Intermediate Club Hurling Championship is an annual inter-county club hurling competition organised by the Gaelic Athletic Association (GAA) since 2004-05 for eligible hurling clubs. Clubs qualify for the competition based on their performance in their county club championships. The final, usually held in early February, serves as the culmination of a series of games played during the winter months, and the results determine which county's team receives the cup. The championship has always been played on a straight knockout basis whereby once a team loses they are eliminated from the series. In the