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Seasonality is an uplifting look at British wildlife through the
seasons of the year, but it is also about our relationship with
that wildlife. The author, a keen and passionate naturalist, takes
us on a journey through spring, summer, autumn and winter, and on
this journey we look at how our wildlife lives throughout the year,
how it adapts and changes as necessary. The author shares how
wildlife makes him feel, how he derives joy and a sense of
well-being from the wildlife he sees and describes. But he also
shares his frustration at how some of our actions and land
management impact on our increasingly pressurised wildlife. It
shares the delight of watching birds in the garden, fox cubs in the
countryside and peregrines in the city. It shares the sadness of
seeing stuffed examples of extinct birds, the anger at the
mismanagement of potentially wildlife-rich hedgerows, and the
confusion and contradiction of the management of our so-called
natural spaces. It is a book of delights and frustrations, but
above all hope and celebration. Whether it is the flash of bright
yellow butterfly wings signalling that spring has arrived, the
slicing of the air by sickle-shaped swifts telling us that summer
has come, the wonderful show of colour that the leaves of trees
display in the autumn, or the deep-throated chuckle of fieldfares
gleaning berries in the winter, the seasons are full of life and
this book describes them in vivid detail. The role of the seasons
in our own lives may have diminished, but for wildlife the seasons
are everything, they are the framework within which everything
happens. Seasonality is your guide, through a naturalist's eyes and
thoughts, to the incredible journey of the four seasons. The
seasons of the year roll on regardless, an endless cycle that
dictates the rhythm of life.
Feldspar minerals make up 60% of the crust of the Earth. They are
stable in the upper mantle, and are so abundant in the crust that
they form the basis of the classification of igneous rocks. At the
surface, feldspars weather to form clay minerals which are the most
important mineral constituent of soils. The articles in this book
review the chemical reactions of feldspars over the whole sweep of
pressure and temperature regimes in the outer Earth, and describe
the fundamental aspects of crystal structure which underlie their
properties. The book covers intracrystalline reactions, such as
order-disorder transformations and exsolution, and transfer of
stable and radiogenic isotopes, which can be interpreted to provide
insights into the thermal history of rocks. It is suitable for
final year undergraduates or research workers.
Acknowledgements xix pioneering workers on igneous layering in
Greenland xx Wbrkshop participants xxii Henning Sfl!rensen,
University of Copenhagen, Dermark. Latte Melchior Larsen,
Geological SUrvey of Greenland, Copenhagen, Dermark. Abstract 1 1 *
Introduction 1 1. 1 The agpaitic rocks of the Ilimaussaq intrusion
3 2. Igneous layering in the Ilimaussaq intrusion 4 3. Mineralogy
of the layered kakortokite series 15 4. Chemistry of the layered
kakortokite series 19 5. Origin of the kakortokite layering 20 5. 1
Discussion 22 6. Conclusion 25 References 26 2. I. AYERn";r
CCMPl\CTIOO NID PCBJ. "--MN}tATIC ~ IN '!HE KLOKKEN INTRUSIOO 29
Ian Parsons and SUsanne M. Becker, University of Aberdeen, U. K.
Abstract 29 1. Introduction 30 2. Age of the intrusion 31 3.
General structure and mineral variation 31 vi TABLE OF CONTENTS 3.
1 Nomenclature of rock types 31 3. 2 Bulk chemical and modal
variation 36 4. The contacts and wall-rocks 37 4. 1 Guter contact
37 4. 2 The gabbro sheath 37 4. 3 The unlaminated syenite sheath 39
4. 4 The gabbro-syenite transition 41 5. The layered series 43 5. 1
General relationships 43 5. 2 Granular syenites 43 5. 2. 1
Structure and cryptic variation 43 5. 2. 2 Origin of granular
layers 46 5. 2. 3 Trace elements and chamber dlinensions 47 5. 3
Laminated syenites 48 5. 3. 1 General features 48 5. 3. 2 Mineral
layering 51 5. 3.
Feldspar minerals make up 60% of the crust of the Earth. They are
stable in the upper mantle, and are so abundant in the crust that
they form the basis of the classification of igneous rocks. At the
surface, feldspars weather to form clay minerals which are the most
important mineral constituent of soils. The articles in this book
review the chemical reactions of feldspars over the whole sweep of
pressure and temperature regimes in the outer Earth, and describe
the fundamental aspects of crystal structure which underlie their
properties. The book covers intracrystalline reactions, such as
order-disorder transformations and exsolution, and transfer of
stable and radiogenic isotopes, which can be interpreted to provide
insights into the thermal history of rocks. It is suitable for
final year undergraduates or research workers.
Acknowledgements xix pioneering workers on igneous layering in
Greenland xx Wbrkshop participants xxii Henning Sfl!rensen,
University of Copenhagen, Dermark. Latte Melchior Larsen,
Geological SUrvey of Greenland, Copenhagen, Dermark. Abstract 1 1 *
Introduction 1 1. 1 The agpaitic rocks of the Ilimaussaq intrusion
3 2. Igneous layering in the Ilimaussaq intrusion 4 3. Mineralogy
of the layered kakortokite series 15 4. Chemistry of the layered
kakortokite series 19 5. Origin of the kakortokite layering 20 5. 1
Discussion 22 6. Conclusion 25 References 26 2. I. AYERn";r
CCMPl\CTIOO NID PCBJ. "--MN}tATIC ~ IN '!HE KLOKKEN INTRUSIOO 29
Ian Parsons and SUsanne M. Becker, University of Aberdeen, U. K.
Abstract 29 1. Introduction 30 2. Age of the intrusion 31 3.
General structure and mineral variation 31 vi TABLE OF CONTENTS 3.
1 Nomenclature of rock types 31 3. 2 Bulk chemical and modal
variation 36 4. The contacts and wall-rocks 37 4. 1 Guter contact
37 4. 2 The gabbro sheath 37 4. 3 The unlaminated syenite sheath 39
4. 4 The gabbro-syenite transition 41 5. The layered series 43 5. 1
General relationships 43 5. 2 Granular syenites 43 5. 2. 1
Structure and cryptic variation 43 5. 2. 2 Origin of granular
layers 46 5. 2. 3 Trace elements and chamber dlinensions 47 5. 3
Laminated syenites 48 5. 3. 1 General features 48 5. 3. 2 Mineral
layering 51 5. 3.
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The Grind (Paperback)
Ian Parson
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R524
R448
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The Grind (Paperback)
Ian Parson
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R497
R415
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