9253 to 9264 of 14084 results
-
-
Subaqueous, basaltic lava dome and carapace breccia on King George Island, South Shetland Islands, Antarctica
Read more of: Subaqueous, basaltic lava dome and carapace breccia on King George Island, South Shetland Islands, AntarcticaOn King George Island during latest Oligocene/earliest Miocene time, submarine eruptions resulted in the emplacement of a small (ca. 500 m estimated original diameter) basalt lava dome at Low Head. The […]
-
Environmental complexity and biodiversity: the multi-layered evolutionary history of a log-dwelling velvet worm in montane temperate Australia
Read more of: Environmental complexity and biodiversity: the multi-layered evolutionary history of a log-dwelling velvet worm in montane temperate AustraliaPhylogeographic studies provide a framework for understanding the importance of intrinsic versus extrinsic factors in shaping patterns of biodiversity through identifying past and present microevolutionary processes that contributed to lineage […]
-
Sand grain detrital modes in CRP-1: provenance variations and influence of Miocene eruptions on the marine record in the McMurdo Sound region
Read more of: Sand grain detrital modes in CRP-1: provenance variations and influence of Miocene eruptions on the marine record in the McMurdo Sound regionDetrital modes for the sand-size fraction in 24 samples from the CRP- 1 drillcore arc described. Most samples are largely composcd of quart7.o-feldspathic detritus sourced dominantly from Palaeozoic granitoids and […]
-
Adopting one name per feature on maps of Antarctica: an experimental application – topographic map (satellite image map) 1:250 000 Trinity Peninsula SP 21-22/13
Read more of: Adopting one name per feature on maps of Antarctica: an experimental application – topographic map (satellite image map) 1:250 000 Trinity Peninsula SP 21-22/13Summary: Antarctica was the focus of numerous exploring and commercial expeditions by different nations during the 19th and early part of the 20th centuries and today it is a truly […]
-
Moulting rates of Calanus helgolandicus: an inter-comparison of experimental methods
Read more of: Moulting rates of Calanus helgolandicus: an inter-comparison of experimental methodsAn inter-comparison of three commonly reported methods for estimating the stage duration of copepods was made on Calanus helgolandicus from both wild and laboratory-reared populations. These three methods have not […]
-
Moulting and growth of the early stages of two species of Antarctic calanoid copepod in relation to differences in food supply
Read more of: Moulting and growth of the early stages of two species of Antarctic calanoid copepod in relation to differences in food supplyInstantaneous measurements of moulting and growth of the early copepodite stages of 2 species of Antarctic copepod, Rhincalanus gigas and Calanoides acutus, were made at 4 regions around South Georgia […]
-
-
-
-
Plasma drift estimates from the Dynasonde: comparison with EISCAT measurements
Read more of: Plasma drift estimates from the Dynasonde: comparison with EISCAT measurementsModern ionosondes make almost simultaneous measurements of the time rate of change of phase path in different directions and at different heights. By combining these ‘Doppler’ measurements and angles of […]
-
Geochemistry of mafic dykes in the Antarctic Peninsula continental-margin batholith: a record of arc evolution
Read more of: Geochemistry of mafic dykes in the Antarctic Peninsula continental-margin batholith: a record of arc evolutionMafic dykes of the Antarctic Peninsula continental-margin arc are compositionally diverse, comprising calc-alkaline (dominant), shoshonite, tholeiite, and OIB-like varieties. Their compositions give information about different mafic magma sources tapped during […]