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Ngounouno, I., Dagwai, N., Kamgang, P. and Deruelle, B. (2008) Petrology of Spinel Lherzolite Xenoliths in Alkali Basalts from Liri, South of the Kapsiki Plateau (Northernmost Cameroon Hot Line). Journal of Cutaneous and Aesthetic Surgery, 8, 31-42.

has been cited by the following article:

• TITLE: Spinel-Bearing Lherzolite Xenoliths from Hosséré Garba (Likok, Adamawa-Cameroon): Mineral Compositions and Geothermobarometric Implications

  AUTHORS: Nguihdama Dagwai, Chazot Gilles, Kamgang Pierre, Mbowou Gbambié Isaac Bertrand, Ngounouno Ismaïla

  KEYWORDS: Xenoliths, lherzolite, Geothermobarometry, Likok, Adamawa

  JOURNAL NAME: International Journal of Geosciences, Vol.5 No.12, November 18, 2014

  ABSTRACT: Spinel-bearing lherzolite xenoliths from the Hossere Garba (1272 m.a.s.l) volcano on the Adamawa Plateau, is located in Likok village, at about 35 km to WSW of Ngaoundere. These xenoliths (~11 cm size) have been sampled into the host basaltic lava flows from the NE flank of the Hossere Garba volcano. These xenoliths characterized by porphyroclastic texture consisted of olivine (~55 vol.%), orthopyroxene (~19 vol.%) and clinopyroxene (~21 vol.%) crystals. Spinel crystals (~5 vol.%) are red brown and interstitial between the crystals of olivine and pyroxenes. CaO contents are low (VI/AlIV ratio range between 1.1 and 1.3 for the Cr-diopside crystals from Hossere Garba xenoliths. The constant value of the volumes V(Cell) and V(M1) for clinopyroxene compositions, indicates the similar pressures. Hossere Garba represents a residual sequence issued from partial melting of a mantle source. Similar compositions have been recorded in minerals of ultramafic xenoliths from other ultramafic xenoliths domains of the Cameroon Line and the Adamawa Plateau.