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<p style="font-family: "Times New Roman"; font-size: medium">Dear all,</p>
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<p style="font-family: "Times New Roman"; font-size: medium">Please consider submitting an abstract to our session:</p>
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<p style="font-family: "Times New Roman"; font-size: medium">“<b><i>Advances in deciphering the structure, mineralogy and composition of the lower mantle</i></b>” at the AGU fall meeting, December 7- 11, 2020.</p>
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<p style="font-family: "Times New Roman"; font-size: medium">The session will focus on recent progress in lower mantle studies and invites submissions from all sub-fields across the Earth sciences.</p>
<p style="font-family: "Times New Roman"; font-size: medium">(<a href="https://protect-au.mimecast.com/s/pwIZCnx1jniOwlKlF9UWUF?domain=agu.confex.com">https://agu.confex.com/agu/fm20/prelim.cgi/Session/103416</a>)</p>
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<p style="font-family: "Times New Roman"; font-size: medium">The lower mantle accounts for over half of the Earth’s mass and plays an important role in the planet’s large-scale heat and material cycles. Seismic studies of the lower mantle revealed heterogeneities
across a range of scales which have been linked to accretion processes, mantle convection, plate tectonics and mineral phase transitions. Open questions remain about the physical nature and origin of seismically observed structures such as Large Low Velocity
Provinces and Ultra-Low Velocity Zones and whether such features could be remnants of early processes such as magma ocean crystallization, long-term accumulation of subducted basaltic material or pristine chondritic-type material. Lower mantle evolution is
also linked to that of the surface through volatile cycling as well as to the evolution of the core. Contributions are encouraged from sub-disciplines across the Earth Sciences that can provide new insights into the lower mantle's structure, composition and
the processes driving its long-term evolution.</p>
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<p style="font-family: "Times New Roman"; font-size: medium">Conveners: Terry-Ann Suer (Harvard), Denis Andrault (University Blaise-Pascal), Maxim Ballmer (University College, London), and Jennifer Jenkins (Cambridge)</p>
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<p style="font-family: "Times New Roman"; font-size: medium">Invited Presenters: Neala Creasy (Colorado School of Mines) and Wenzhong Wang (University in Hefei, China)</p>
<p style="font-family: "Times New Roman"; font-size: medium">The deadline for abstract submission is Wednesday, 29 July at 23:59 EDT.</p>
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<p style="font-family: "Times New Roman"; font-size: medium">Cheers</p>
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<p style="font-family: "Times New Roman"; font-size: medium">Terry-Ann, Denis, Maxim, Jenny, Dongyang</p>
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<div dir="ltr"><span style="font-family:"courier new",monospace"><span style="color:rgb(102,102,102)"><b>Maxim D. Ballmer</b></span></span><br>
原眞マキシム<span style="font-family:"courier new",monospace"><span style="color:rgb(102,102,102)"><br>
<b>Asst. Professor @ Univ. College London, Dept. Earth Sciences<br>
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<div><span style="color:rgb(102,102,102); font-family:"courier new",monospace; font-size:12.8px">office: KLB 341, Gower Place, WC1E 6BT London</span></div>
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<div dir="ltr"><span style="font-family:"courier new",monospace"><span style="color:rgb(102,102,102)">.............................................................<br>
<b>Maxim D. Ballmer</b></span></span><br>
原眞マキシム<span style="font-family:"courier new",monospace"><span style="color:rgb(102,102,102)"><br>
<b>Asst. Professor @ Univ. College London, Dept. Earth Sciences<br>
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<div><span style="font-family:"courier new",monospace"><span style="color:rgb(102,102,102)"><b><span><span><span><b>Visiting Scientist @ Inst. Geophysics, ETH Zurich</b></span></span></span></b></span></span></div>
<div><span style="color:rgb(102,102,102); font-family:"courier new",monospace; font-size:12.8px">office: NO H 9.3, 5, CH-8092 Zurich</span><br>
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