On the secular variations in the composition of Phanerozoic marine potash evaporites: comment and reply
Article Abstract:
The model proposed by H.D. Holland and coworkers on the changes in sea-water composition based on the mixing of hydrothermal brine from mid-ocean-ridges and river water contains a number of contentious issues. Among these issues are the use of differences in dolomitization to explain variation in magnesium sulphate levels in brine and the parameters that influence the precipitation of calcite and aragonite. The response of Holland and coworkers to these contentions is presented.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1998
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Vertical axis rotations in the Mojave: evidence from the independence dike swarm: comment and reply
Article Abstract:
The basis of the interpretation of vertical axis rotations in the Mojave Desert was the assumption that the dikes were regionally parallel to start with. The direction of the dikes exhibits deviation from the expected direction based on the rotational model presented, thereby casting doubts on the validity of the model. Paleomagnetic investigations are needed. The reply of the investigators who put forth the rotational model is presented.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1997
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No statistical support for sudden (or gradual) extinction of dINNsaurs: comment and reply
Article Abstract:
The contention on dINNsaur diversity and extinction is refuted on three main points. Firstly, it is claimed that the measures of familial diversity were inaccurate. Secondly, the relationship between familial diversity and changes in generic diversity is questioned. Lastly, it is believed that the statistical procedures applied for such a study were inaccurate.
Publication Name: Geology
Subject: Earth sciences
ISSN: 0091-7613
Year: 1996
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- Abstracts: Extending the western North American Proterozoic and Paleozoic continental crust through the Mojave Desert: comment and reply
- Abstracts: Quarterly slip history of the Bare Mountain fault (Nevada) from the morphology and distribution of alluvial fan deposits: comment and reply
- Abstracts: Displacement since the Pliocene along the southern section of the Alpine fault, New Zealand: comment and reply
- Abstracts: Evidence in pre-2.2 Ga paleosols for the early evolution of atmospheric oxygen and terrestrial biota: comment and reply
- Abstracts: Discussion on the relationship between bitumens and mineralization in the South Pennine Orefield, central England