TY - JOUR T1 - Fast and slow spreading ridges: structure and hydrothermal activity - Ultramafic Topographic Highs and CH4 output A1 - Bougault,Henri A1 - Charlou,Jean-Luc A1 - Fouquet,Yves A1 - Needham,Hubert D A1 - Vaslet,Nathalie A1 - Appriou,Pierre A1 - Jean Baptiste,Philippe A1 - Rona,Peter A A1 - Dmitriev,Leonid A1 - Silantiev,Sergei AD - IFREMER,CTR BREST,DEPT GEOSCI MARINES,F-29280 PLOUZANE,FRANCE. AD - UNIV BRETAGNE OCCIDENTALE,FAC SCI,DEPT CHIM,F-29200 BREST,FRANCE. AD - CENS,CEA,DSM DPH SPER,GEOCHIM ISOTOP LAB,F-91190 GIF SUR YVETTE,FRANCE. AD - NOAA,ATLANTIC OCEANOG & METEOROL LAB,MIAMI,FL 33149., USA AD - VI VERNADSKY GEOCHEM INST,MOSCOW 10334,RUSSIA. UR - https://archimer.ifremer.fr/doc/00070/18116/ DO - 10.1029/93JB00508 Y1 - 1993/06 PB - Amer Geophysical Union JF - Journal Of Geophysical Research-solid Earth SN - 0148-0227 VL - 98 IS - B6 SP - 9643 EP - 9651 ID - 18116 ER -